国家有贤德之士而不任用，不是贤德之士的过失，而应该是拥有这个国家的君主的羞耻。

I'm a free bitch, baby.

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.

文学和科学相比，的确没什么用处，但文学最大的用处，也许就是它没有用处。

Sometimes I just feel like, you know, I'm stuck in a rut. I just go through the motions. I don't enjoy it like I used to.

The root of all superstition is that men observe when things hit， and not when they miss， and commit to memory the one， and pass over the other.