The founders of a new colony, whatever Utopia of human virtue and happiness they might originally project, have invariably recognized it among their earliest practical necessities to allot a portion of the virgin soil as a cemetery, and another portion as the site of a prison.
In mathematics, you don't understand things. You just get used to them.
心理活动是有机体与世界互动的方式。
强大但是骄傲就会削弱力量，弱小而骄傲只会加速灭亡。
Sustainability isn't just an option; it's the only way forward for responsible businesses.