我一直想成为一名歌手，我专注于这个目标，即使别人告诉我我做不到。
I always wanted to be a singer, and I focused on that goal, even when others told me I couldn't do it.
对于那些没有研究过数学的人来说，有些事情似乎是难以置信的。
Sustainability isn't a trend—it's the future of food production.
Premature optimization is the root of all evil.
War is an ugly thing， but not the ugliest of things: the decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth a war， is much worse.