You have to be willing to fail, to be wrong, to keep trying.
What we have to remember is that we can still do anything. We can change our minds. We can start over.
The mind is a network of interdependent processes.
我们越意识到面对宇宙力量时的渺小和无能，人类的成就就越令人惊叹。
A good abstraction is one that emphasizes the important details and suppresses the unimportant ones.
一个好的抽象是强调重要细节并抑制不重要细节的抽象。
The sun himself is weak when he first rises, and gathers strength and courage as the day gets on.
有时最艰难的战斗发生在我们内心的沉默中。