Computer programming is an art, because it applies accumulated knowledge to the world, because it requires skill and ingenuity, and especially because it produces objects of beauty.
Time does not heal all wounds, but it teaches us how to live with them.
It is greed and thirst for power that brings wars and trouble to the world.
自由民主的传播和世界经济的整合已经创造了一种情况，即大国不再愿意冒险相互开战。
The most important thing in mathematics is to understand the concepts, not just to memorize formulas.