我不活在过去，我专注于现在和未来。

I'm not interested in playing the hero. I'm interested in playing the human.

真相是，我们都有自己的现实版本，有时这些版本与事实不符。

"Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers."

密码学的本质是允许在存在对手的情况下进行通信。