A clever person solves a problem. A wise person avoids it.

Coincidence is God's way of remaining anonymous.

Try to become not a man of success, but try rather to become a man of value.

The world is a dangerous place to live, not because of the people who are evil, but because of the people who don't do anything about it.

Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution.