Inventing is a combination of brains and materials. The more brains you use, the less material you need.

We are just in the kindergarten of uncovering things; there is no downcurve in science.

Every father should remember one day his son will follow his example, not his advice.

99 percent of success is built on failure.

Education is man's going forward from cocksure ignorance to thoughtful uncertainty.Where there is an open mind there will always be a frontier.

People are very open-minded about new things - as long as they're exactly like the old ones.

Every great improvement has come after repeated failures. Virtually nothing comes out right the first time. Failures, repeated failures, are finger posts on the road to achievement. One fails forward toward success.