要找到自己，就要为自己思考。

可持续性不仅仅是一个流行词；它是对未来世代的承诺。

We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.

我一直相信，你对待他人的方式反映了你对自己的感受。

你不能让恐惧阻止你过自己的生活。