The seabbard is content to be dull when it protects the keenness of the word.
剑鞘保护剑的锋利，自己却满足於它自己的迟钝。
A malignant book would hurt nobody but the fool who wrote it.
一个奇怪的事实是，根据从生物学或地球物理学的角度出发，对地球史前条件会得出完全相反的结论，这反映了我们目前知识的不完整状态。
活着是世界上最罕见的事情。大多数人只是存在，仅此而已。
Life isn’t about having, it’s about being.
The balance of power is the scale of peace.
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.