It is astonishing what an effort it seems to be for many people to put their brains definitely and systematically to work.

Great ideas originate in the muscles.

Each time you fail, you have eliminated another wrong option.

Never Say I Failed 99 Times, Say I Discovered 99 Ways Which Causes Failure!

Consider data without prejudice.

Before you reject an idea, find at least five good things about it.

Show me a completely contented person and I'll show you a failure.