译文：人生得一知己必须要对知己问心无愧，读书人多读书，一定要学以致用。赏析：做人做事凭着良心方能服众，才不会招致怨愤和祸患。读书的目的就是学以致用，我们不能读死书，死读书，我们要让书中的知识来指导我们的生活。

Man is the measure of all things: of things which are, that they are, and of things which are not, that they are not.

A true mathematician is always a student, always learning.

You have to believe in yourself when no one else does.

Success is a journey, not a destination.