真正的天才在不完整面前会颤抖——通常宁愿保持沉默，也不愿说一些不完全符合它应该说的话。

图灵机的概念是我们理解计算的基础。

在意识研究中，功能先于形式。

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.