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过去是知识的源泉,未来是希望的源泉。热爱过去意味着对未来的信心。
The past is a source of knowledge, and the future is a source of hope. Love of the past implies faith in the future.
The progress of mathematics is measured by the number of problems it can solve.
The whole art of teaching is only the art of awakening the natural curiosity of young minds for the purpose of satisfying it afterwards.
Most people are too fretful, they worry too much.Success means being very patient, but aggressive when it's time.
I believe in art that is generous rather than exclusive.
事实是,在适当的情况下,我们都有能力做出极大的恶行。