自然科学是人类文化的一部分，它与艺术或宗教一样具有人性。
The true measure of an economy’s success is how well it serves all its citizens.
The first step in the art of cutting metals is to find a man who has the necessary skill and experience to do the work.
The mind is a biological adaptation shaped by evolution.
The truth is rarely pure and never simple.
I came up from the bottom, now I'm here.