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.

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.

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.

Depart from the deeds of darkness. Return to path of light.

Strip clubs let everyone down. Men and women approach their very worst here.

In the moment, you most likely won't know how valuable such detours will prove to be, but life has a way of revealing the hidden magic in these moments down the road at the appropriate time.

Plants live; how much they feel and enjoy, who shall say?

Kindness and consideration of somebody besides yourself. I think that keeps you feeling young. I really do.

Oh my God, I could watch Jennifer Coolidge for hours.

Good-breeding shows itself most where to an ordinary eye it appears the least.

My kids can't watch ('Howard the Duck'). By the time I get in bed with the duck, they are, like, 'Turn it off, mom. You in bed with a duck is just pretty much a deal breaker.'

The Republicans went so far to the right that they just can't get votes. They've become a dedicated party of the very rich and the corporate sector.

Annabeth sat up and glared at her ankle. "You HAD to break," she scolded it. The ankle did not reply.