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True progress happens when we stop defending the status quo and start challenging it.
真正的进步发生在我们停止捍卫现状并开始挑战它的时候。
动物和人类的区别在于人类能够推理,但即便如此也是不可靠的。
解析:教导学生,不到他想弄明白而不得的时候,不去开导他;不到他想出来却说不出来的时候,不去启发他。
In every problem, there is a hidden pattern waiting to be discovered, and it is our duty as mathematicians to uncover it.
No one is an artist unless he carries his picture in his head before painting it.