I watch a lot of TV. That's how I spend most of my time outside of work. If I had more time, I would fill it 100 percent with watching TV.

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.

You can’t trap justice. It’s an idea, a belief.

Liberty is too priceless to be forfeited through the zeal of an administrative agent.

The only relevant question is whether you will let it be possible for you.

I have met with women whom I really think would like to be married to a Poem and to be given away by a Novel.

There was so much goodness in my life. So much happiness. I wondered whether I deserved any of it.

Parents are by no means exempt from the intoxication of dominion.

The real superstar is a man or a woman raising six kids on $150 a week.

We kept on racing, doing something that Luis [Salom] loved. Fortunately or unfortunately, life goes on.