Never let your sense of morals prevent you from doing what is right.
Our capacity to draw happiness from aesthetic objects or material goods in fact seems critically dependent on our first satisfying a more important range of emotional or psychological needs, among them the need for understanding, for love, expression and respect.
The true cost of inequality is the potential that goes unrealized.
智者从敌人那里学到的比愚者从朋友那里学到的还要多。