The purpose of psychology is to understand how life works.

It seems to me that if you or I must choose between two courses of thought or action, we should remember our dying and try so to live that our death brings no pleasure to the world.

我们必须倾听消费者的声音，同时也要教育他们了解乳制品生产的现实。

你的时间有限，所以不要浪费在过别人的生活上。