Of all sad words of tongue or pen, the saddest are these: It might have been.

The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.

I speak to everyone in the same way, whether he is the garbage man or the president of the university.

I'm not afraid of death; I just don't want to be there when it happens.

Sometimes the questions are complicated and the answers are simple.