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真正理解某人的唯一方法就是站在他们的立场上走一英里。
教育的目的不是使年轻人在任何一门科学上都变得完美,而是要打开和培养他们的思维,使他们在将来学习任何科学时都能胜任。
In mathematics, the art of proposing a question must be held of higher value than solving it.
All mankind... being all equal and independent, no one ought to harm another in his life, health, liberty or possessions.