The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.

The problem with socialism is that you eventually run out of other people's money.

The most important thing is to turn your vision into reality.

The secret of joy in work is contained in one word – excellence. To know how to do something well is to enjoy it.

I can’t play bridge. I don’t play tennis. All those things that people learn, and I admire, there hasn’t seemed time for. But what there is time for is looking out the window.