The boundary between physics and mathematics is not as clear-cut as one might think.

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.

与土地断开连接就是与我们自己断开连接。

"The most important single aspect of software development is to be clear about what you are trying to build."

唯一真正的罪过是后悔。

"The truth is rarely pure and never simple."

"Die Vergangenheit ist nie tot, sie ist nicht einmal vergangen."

我不是对白，我是合唱。