The days of hair tonics have long since passed.

I would have taken the time to learn how to listen earlier. Learning about non-violent communication and how to take feedback has been integral to both my personal happiness and professional success.

If there's only one nation in the sky, shouldn't all passports be valid for it?

We encounter great souls, who lived in historical times, in ancient books.

The zeal of kids is to explore! Until you know how to sustain the real interest of your child, the real interest of your child shall be sustained by something else!

Innovation needs preparation, collaboration and the light of the soul. Every challenge provides that light - a greater depth of understanding about life and truth.

Well, a peach has a lovely taste and so does a mushroom, but you can't put the two together.

Regret and fear are twin thieves that rob us of today.

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

Our emotional life maps our incompleteness: A creature without any needs would never have reasons for fear, or grief, or hope, or anger.

I'm just going to be me.

We can make an impression on this world if the world doesn't make too much impression on us.