I don’t count my sit-ups, I only start counting when it starts hurting.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
The general population doesn't know what's happening, and it doesn't even know that it doesn't know.
研究的场所不是研究的对象。人类学家不研究村庄(部落、城镇、社区……);他们在村庄里做研究。