Everybody's got a different circle of competence. The important thing is not how big the circle is. The important thing is staying inside the circle.

Not everything that counts can be counted, and not everything that can be counted counts.

A ship is always safe at the shore - but that is NOT what it is built for.

Science without religion is lame. Religion without science is blind.

Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction.

If A is a success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut.