99 percent of success is built on failure.

A great part of its [higher arithmetic] theories derives an additional charm from the peculiarity that important propositions, with the impress of simplicity on them, are often easily discovered by induction, and yet are of so profound a character that we cannot find the demonstrations till after many vain attempts; and even then, when we do succeed, it is often by some tedious and artificial process, while the simple methods may long remain concealed.

A thesis has to be presentable... but don't attach too much importance to it. If you do succeed in the sciences, you will do later on better things and then it will be of little moment. If you don't succeed in the sciences, it doesn't matter at all.

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

An inventor is simply a fellow who doesn't take his education too seriously. You see, from the time a person is six years old until he graduates form college he has to take three or four examinations a year. If he flunks once, he is out. But an inventor is almost always failing. He tries and fails maybe a thousand times. It he succeeds once then he's in. These two things are diametrically opposite. We often say that the biggest job we have is to teach a newly hired employee how to fail intelligently. We have to train him to experiment over and over and to keep on trying and failing until he learns what will work.

Any policy is a success by sufficiently low standards and a failure by sufficiently high standards.

As a general rule, the most successful man in life is the man who has the best information.

Believe and act as if it were impossible to fail.

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.

Finally, two days ago, I succeeded - not on account of my hard efforts, but by the grace of the Lord. Like a sudden flash of lightning, the riddle was solved. I am unable to say what was the conducting thread that connected what I previously knew with what made my success possible.

I tried and failed. I tried again and again and succeeded.

It is on record that when a young aspirant asked Faraday the secret of his success as a scientific investigator, he replied, 'The secret is comprised in three words— Work, Finish, Publish.'

Let me tell you the secret that has led me to my goal. My only strength lies in my tenacity.

No one wants to learn by mistakes, but we cannot learn enough from successes to go beyond the state of the art

One of the characteristics of successful scientists is having courage. Once you get your courage up and believe that you can do important problems, then you can. If you think you can't, almost surely you are not going to.

Success in research needs four Gs: Glück, Geduld, Geschick und Geld. Luck, patience, skill and money.

Success is the child of audacity.

The only time you mustn't fail is the last time you try.

The real secret of success is enthusiasm.