Everything that happens once can never happen again. But everything that happens twice will surely happen a third time.

Truth and clarity are complementary.

"The past is never dead. It's not even past."

The power of a programming language is not in its syntax, but in the abstractions it provides.

The past is never dead. It's not even past.

不用圆规和曲尺，就不能画出方形和圆形。比喻做事要遵循一定的法则。