A book should feel like a friend to a child—comforting, exciting, and full of surprises.

最重要的是通过给予人们超出他们当前能力的任务来发展他们的能力。

音乐是我的生命。它是我的激情，我的爱，我的一切。

Anarchy is the permissive cause of war; it creates an environment in which states have to rely on self-help to ensure their survival.

你不必完美才能激励他人。

I'm interested in all kinds of pictures, however they're made.

Science cannot solve the ultimate mystery of nature. And that is because, in the last analysis, we ourselves are part of nature and therefore part of the mystery that we are trying to solve.