The most that can be expected from any model is that it can supply a useful approximation to reality.
对任何模型的最大期望是它能提供一个对现实有用的近似。
天地不夸耀自己的明亮,大水不夸耀自己的清澈,大火不夸耀自己的炎烈,有德之君不夸耀自己的德行高远,这样才能做众人的领袖。
I don't want to be a champion only on the court, I want to be a champion in life.