Do not bring me your successes; they weaken me. Bring me your problems; they strengthen me.

An inventor fails 999 times, and if he succeeds once, he's in. He treats his failures simply as practice shots.

If I have had any success, it's due to luck, but I notice the harder I work, the luckier I get.

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.

Research means that you don't know, but are willing to find out.

The opportunities of man are limited only by his imagination. But so few have imagination that there are ten thousand fiddlers to one composer.

Every honest researcher I know admits he's just a professional amateur. He's doing whatever he's doing for the first time. That makes him an amateur. He has sense enough to know that he's going to have a lot of trouble, so that makes him a professional.