The greatest threat to our planet is the belief that someone else will save it.
The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.
To be human is to be vulnerable.
历史不仅仅是关于国王和战争——它是关于那些经历过它的人们。
The quality of an organization can never exceed the quality of the minds that make it up.