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对称性不仅是自然的一种属性,而且是寻找物理定律的指导原则。
The most dangerous phrase in business is: 'We've always done it this way.'
平凡与非凡的区别就在于那一点额外的努力。
Knowledge can be shared, but wisdom cannot. It must be discovered and lived.
过去总是紧张的,未来则是完美的。
The greatest poverty is not to live in a physical desert, but to live as an exile in one's own heart.