One fact we're particularly proud of is that there are more people learning languages on Duolingo in the US than there are people learning languages in the entire US public school system.

The question that motivates my research is, if we can put a man on the Moon with 100,000 [people], what can we do with 100 million?

My ultimate research goal is to transform our human existence to just eating, sleeping, drinking, playing - nevermind.

I co-founded Duolingo with the mission of bringing free language education to the world.

People are good at figuring out what's attractive, and computers are good at quickly searching and finding. You put them together, and bang!

I am always able to keep a laser focus on one thing at a time without getting distracted. It helps that I try to break everything I do into small, achievable tasks.

I usually make to-do lists with timelines, and pen and paper does the trick for me.

Because education is such a broad area, I chose to focus on language learning.

[Captchas] are not only annoying, but they kill 10 seconds of your time.

Every time you buy tickets on Ticketmaster, you help to digitize a book.

I finished reading High Output Management by Andrew Grove, which had such valuable insights for leaders that I've been forcing managers at Duolingo to read the book.

Brastias. My friend.” Uh-oh, this couldn’t be good. “Do you lie to me?”“Uh . . . no.”“See? That’s a lie!

I learned early in life that you get places by having the right enemies.

Let's put research into the hands of legitimate scientists, not pot profiteers.

There is only one way to learn... It's through action.

Living consciously involves being genuine; it involves listening and responding to others honestly and openly; it involves being in the moment.

Money stress is what used to remind me of my Dad most.

Its always when you think that youve lost a little of the baby weight that someone steps in grabs a handful of a now sans baby soft belly and asks the inevitable When are you due?

Confidence gives a fool the advantage over a wise man.

The Poet in his ArtMust intimate the whole, and say the smallest part.