When I approach a child, he inspires in me two sentiments; tenderness for what he is, and respect for what he may become.

A real decision is measured by the fact that you’ve taken a new action. If there’s no action, you haven’t truly decided.

I suppose when they reach a certain age some men are afraid to grow up. It seems the older the men get, the younger their new wives get.

相对论不仅仅是一种科学理论；它是一种哲学理论。