知识就是力量。

The problem with words is that you never know whose mouths they have been in.

The most important thing you can do to achieve your goals is to make sure that as soon as you set them, you immediately begin to create momentum.

我接受混乱，但不确定它是否接受我。

一个物理符号系统具备一般智能行为的必要和充分条件。