如果你发现自己身处一艘不断漏水的船里,换一艘船所需的能量可能比填补漏洞所需的能量更有效率。
A mathematician's work is never done; there are always more problems to solve.
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.