The love of democracy is that of equality.

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.

值得注意的是，一门始于考虑机会游戏的科学竟然成为了人类知识中最重要的对象。

成功的交易者是有计划并坚持执行的人。

有些人特别善于了解自己的知识极限，因为他们必须这样做。