In contrast to logic, there is common sense, or still better, the Spirit of Reasonableness.

Only he who handles his ideas lightly is master of his ideas, and only he who is master of his ideas is not enslaved by them.

This I conceive to be the chemical function of humor: to change the character of our thought.

There is no proper time and place for reading. When the mood for reading comes, one can read anywhere

No one realizes how beautiful it is to travel until he comes home and rests his head on his old, familiar pillow.

Creative work carries with it a form of intense love.

Sometimes it is more important to discover what one cannot do, than what one can do.