Progress is impossible without change, and those who cannot change their minds cannot change anything.

The simplest of women are wonderful liars who can extricate themselves from the most difficult dilemmas with a skill bordering on genius.

"Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world."

自然是一个活生生的整体，而不是一个死的集合体。

生存的唯一途径是记住我是人类，而作为人类就意味着永远处于不断变化的状态中。