There is an I in "happiness",There is no Y in "happiness",It's an I.

"The past is a ghost that haunts the present, whether we acknowledge it or not."

最可持续的产品是已经存在的产品。

My work is like a diary. It records my feelings and thoughts.

The bigger the brain, the more complex the social world it can manage.

随机实验是因果推理的黄金标准，但它们并不总是可行的。