我不害怕跌倒，因为我知道我会重新站起来。

I'm not perfect, I don't claim to be, but I'm trying.

领导的艺术在于说不，而不是说是。说是很容易的。

Security is not a product, but a process.

软件工程的目标是控制复杂性，而不是创造复杂性。

I couldn't remember the reason for living, and when I did it wasn't convincing.