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All behavior is ultimately reducible to physical and chemical processes.

真正的發(fā)現(xiàn)之旅不在于尋找新的風景，而在于擁有新的眼光。

I'm not a god, but I'm not just a man.

I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.

The young do not know enough to be prudent, and therefore they attempt the impossible, and achieve it, generation after generation.