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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 best fertilizer is the gardener's shadow.
If we had paid no more attention to our plants than we have to our children, we would now be living in a jungle of weeds.
"The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'"
Reality is always more fantastic than fiction.
如果一个想法在一开始不是荒谬的,那它就是没有希望的。