数学不是一项观赏性运动。
Mathematics is not a spectator sport.
"Words are, of course, the most powerful drug used by mankind."
The first rule of government spending: why build one when you can have two at twice the price?
避免错误的唯一方法就是没有新想法。
Customer satisfaction is worthless. Customer loyalty is priceless.
消费者的信任是通过透明度和始终如一的承诺兑现赢得的。