在冬天的深处，我发现我内心有一个不可战胜的夏天。

The past is a kind of future that has already happened.

The aim of education should be to teach us rather how to think, than what to think—rather to improve our minds, so as to enable us to think for ourselves, than to load the memory with thoughts of other men.

Why does a person own a dog?”“For security, I guess...For the security of knowing that there's at least one creature in the world who likes you.

Investing in clean energy technologies is not just good for the environment; it's good for business.

The mind's first duty is to keep the organism going.

技术是在满足全球能源需求的同时减少排放的关键因素。