I will hazard a prediction. When you are 80 years old， and in a quiet moment of reflection narrating for only yourself the most personal version of your life story， the telling that will be most compact and meaningful will be the series of choices you have made. In the end， we are our choices. Build yourself a great story.

Every hour, she thinks, someone forges the rings, someone carves the cradle, someone loses the war.

高分子化学的未来在于合成具有特定应用定制性能的新材料。

It is the duty of a student to get everything out of a teacher， and the duty of a teacher to get everything out of a student.

利润不是企业的正当目的。企业的正当目的是提供人们需要的产品或服务，并且做得足够好从而获得利润。