"I wouldn't be where I am now if I didn't fail ... a lot. The good, the bad, it's all part of the success equation."

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The scientists from Franklin to Morse were clear thinkers and did not produce erroneous theories. The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane. Today's scientists have substituted mathematics for experiments, and they wander off through equation after equation, and eventually build a structure which has no relation to reality.

— Nikola Tesla