The principle of all successful effort is to try to do not what is absolutely the best, but what is easily within our power, and suited for our temperament and condition.
Mediocre theoretical physicists make no progress. They spend all their time understanding other people's progress.
If you're going to be successful, you better have a goal, you better find really good people, better understand where all the money's coming from. And you better measure the living daylights out of it.
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