15 Inspiring Quotes About Teachers

iStock.com/skynesher
iStock.com/skynesher

Next to parents, teachers may be the most influential figures we'll ever have in our lives. In honor of Teacher Appreciation Week, we're taking a look at some of the most evocative quotes about these beloved educators.

  1. "The dream begins, most of the time, with a teacher who believes in you, who tugs and pushes and leads you on to the next plateau, sometimes poking you with a sharp stick called truth." —Dan Rather, Journalist
  1. "The test of a good teacher is not how many questions he can ask his pupils that they will answer readily, but how many questions he inspires them to ask him which he finds it hard to answer.” —Alice Wellington Rollins, Author
  1. "I like a teacher who gives you something to take home to think about besides homework.” —Lily Tomlin, Actress
  1. "Most of us end up with no more than five or six people who remember us. Teachers have thousands of people who remember them for the rest of their lives.” —Andy Rooney, Journalist
  1. "There's no word in the language I revere more than teacher. My heart sings when a kid refers to me as his teacher, and it always has. I've honored myself and the entire family of man by becoming a teacher." —Pat Conroy, Author
  1. "… It is a greater work to educate a child, in the true and large sense of that phrase, than to rule a state.” —William Ellery Channing, Preacher and Theologian
  1. "The future of the world is in my classroom today, a future with the potential for good or bad ... Several future presidents are learning from me today; so are the great writers of the next decades, and so are all the so-called ordinary people who will make the decisions in a democracy. I must never forget these same young people could be the thieves and murderers of the future. Only a teacher? Thank God I have a calling to the greatest profession of all! I must be vigilant every day, lest I lose one fragile opportunity to improve tomorrow." —Ivan Welton Fitzwater, Educator
  1. "Education is not the filling of a pail, but the lighting of a fire." —Source Unknown, sometimes attributed to William Butler Yeats, Poet
  1. "I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit." —John Steinbeck, Author
  1. "Teaching is the greatest act of optimism.” —Colleen Wilcox, Educator
  1. "A teacher affects eternity; he can never tell where his influence stops." —Henry Brooks Adams, Historian
  1. "Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important." Bill Gates, Technologist and Philanthropist
  1. "The art of teaching is the art of assisting discovery." —Mark Van Doren, Poet
  1. "I think the teaching profession contributes more to the future of our society than any other single profession." —John Wooden, Athlete and Coach
  1. "Teachers, I believe, are the most responsible and important members of society because their professional efforts affect the fate of the Earth." —Helen Caldicott, Physician and Author

Updated for 2019.

10 Juicy Facts About Leeches

Ian Cook
Ian Cook

Leeches get a bad rap, but they’re actually pretty cool once you get to know them—and we're finding out more about them, even today. Recently, a team led by Anna Phillips, curator of parasitic worms at the Smithsonian National Museum of Natural History, discovered a new species of medicinal leech (pictured above) in a Maryland swamp. We asked parasite expert and curator at the American Museum of Natural History Mark E. Siddall to share some surprising facts about the worms we love to hate. 

1. Not all leeches suck blood.

Hematophagous, or blood-feeding, species are only one type of leech. “The vast majority of species are [hematophagous],” Siddall tells Mental Floss, “but it depends on the environment. In North America, there are probably more freshwater leeches that don’t feed on blood than there are blood-feeders.” And even among the hematophagous species, there are not too many who are after you. “Very few of them are interested in feeding on human blood,” Siddall says. “Certainly they’ll do it, if they’re given the opportunity, but they’re not what they’re spending most of their time feeding on.” 

2. Leeches are everywhere.

Japanese leech on a log
Pieria, Wikimedia Commons // Public Domain

“Every continent on the planet has leeches, with the exception of Antarctica,” Siddall says. “And even then there are marine leeches in Antarctic waters.” Humans have co-existed with leeches for so long, according to Siddall, that just about every language has a word for leech. 

3. Leeches have made a comeback in medicine.

Bloodletting for bloodletting’s sake has fallen out of favor with Western physicians, but that doesn’t mean medicinal leeches are enjoying a cushy retirement. Today, surgeons keep them on hand in the operating room and use them as mini-vacuums to clean up blood. “That is a perfectly sensible use of leeches,” Siddall says. Other uses, though, are less sensible: “The more naturopathic application of leeches in order to get rid of bad blood or to cure, I don’t know, whatever happens to ail you, is complete hooey,” he says. How on Earth would leeches take away bad blood and leave good blood? It’s silly.” 

4. Novelist Amy Tan has her own species of leeches.

Land-based leeches made an appearance in Tan’s 2005 book Saving Fish from Drowning, a fact that instantly put the author in leech researchers’ good graces. “There are not a lot of novels out there with terrestrial leeches in them,” Siddall says. So when he and his colleagues identified a new species of tiny terrestrial leeches, they gave the leech Tan’s name. The author loved it. “I am thrilled to be immortalized as Chtonobdella tanae,” Tan said in a press statement. “I am now planning my trip to Queensland, Australia, where I hope to take leisurely walks through the jungle, accompanied by a dozen or so of my namesake feeding on my ankles.”

5. Leeches can get pretty big.

The giant Amazon leech (Haementeria ghilianii) can grow up to 18 inches and live up to 20 years. And yes, this one’s a blood-feeder. Like all hematophagous species, H. ghilianii sticks its proboscis (which can be up to 6 inches long) into a host, drinks its fill, and falls off. Scientists thought the species was extinct until a zoologist found two specimens in the 1970s, one of whom he named Grandma Moses. We are not making this up.

6. Leeches make good bait.

Many walleye anglers swear by leeches. “A leech on any presentation moves more than other types of live bait," pro fisher Jerry Hein told Fishing League Worldwide. "I grew up fishing them, and I think they're the most effective live bait around no matter where you go." There’s an entire leech industry to provide fishers with their bait. One year, weather conditions kept the leeches from showing up in their typical habitats, which prevented their collection and sale. Speaking to CBS news, one tackle shop owner called the absence of leeches “the worst nightmare in the bait industry.”

7. Leech scientists use themselves as bait.

Siddall and his colleagues collect and study wild leeches. That means hours of trekking through leech territory, looking for specimens. “Whether we’re wandering in water or traipsing through a bamboo forest,” Siddall says, “we are relying on the fact that leeches are attracted to us.” Do the leeches feed on them? “Oh my god, yes. We try to get them before they feed on us … but sometimes, obviously, you can’t help it.”

8. Leech sex is mesmerizing.

Like many worms, leeches are all hermaphroditic. The specifics of mating vary by species, but most twine themselves together and trade sperm packets. (The two leeches in the video above are both named Norbert.)

9. Some leech species make surprisingly caring parents. 

“There’s a whole family of leeches that, when they lay their eggs, will cover them with their own bodies,” Siddall says. “They’ll lay the eggs, cover them with their bodies, and fan the eggs to prevent fungus or bacteria from getting on them, and then when the eggs hatch, they will attach to the parent. They’re not feeding on the parent, just hanging on, and then when the parent leech goes to its next blood meal it’s carrying its offspring to its next blood meal. That’s pretty profound parental care, especially for invertebrates.”

10. You might be the next to discover a new leech species. 

Despite living side-by-side with leeches for thousands of years, we’ve still got a lot to learn about them. Scientists are aware of about 700 different species, but they know there are many more out there. “I’ll tell you what I wish for,” Siddall says. “If you ever get fed on by a leech, rather than tearing off and burning it and throwing it in the trash, maybe observe it and see if you can see any color patterns. Understand that there’s a real possibility that it could be a new species. So watch them, let them finish. They’re not gonna take much blood. And who knows? It could be scientifically useful.”

22 Weird Jobs From 100 Years Ago

Metal Floss via YouTube
Metal Floss via YouTube

Before everyone started working in tech, people actually had their choice of eclectic and strange vocations that put food on their old-timey tables. Discover what lamplighters, lectores, and knocker-uppers did back in the day as Mental Floss editor-in-chief Erin McCarthy runs down 22 Weird Old Jobs from 100 Years Ago.

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