Medical research in the twentieth century mostly takes place in the lab; in the Renaissance, though, researchers went first and foremost to the library to see what the ancients had said.
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When the burdens of the presidency seem unusually heavy, I always remind myself it could be worse. I could be a mayor.
There seems to be one quality of mind which seems to be of special and extreme advantage in leading him to make discoveries. It was the power of never letting exceptions go unnoticed.

