Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work.

The charm of study consists chiefly in the satisfaction which the mind experiences in acquiring knowledge.

The laws of physics are the same everywhere in the universe, and that is a profound truth.

I'm not perfect, but I'm perfectly me.

The general will is always right， but the judgment which guides it is not always enlightened.