科学应当为人类服务，而不是反过来。

I think that the most important thing is to be honest with yourself and with the audience.

羊羔有跪下接受母乳的感恩举动，小乌鸦有衔食喂母鸦的情义。

The interplay between discrete and continuous mathematics is where some of the most interesting problems lie.

过去是一个异国他乡；他们在那里做事的方式不同。

The forest doesn't need us, but we need the forest—our survival depends on it.