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Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

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Intelligent life on other planets? I'm not even sure there is on earth!

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Joy in looking and comprehending is nature's most beautiful gift.

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It is not that I'm so smart. But I stay with the questions much longer.

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The measure of intelligence is the ability to change.

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Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to here...more

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Stay away from negative people. They have a problem for every solution.