短缺乃是一种符号,它意味着价格被人为地保持在低于供求双方可以自由行事时的水平。
You don't need to change a single thing about yourself.
我们是我们一再重复的行为。因此,卓越不是一种行为,而是一种习惯。
We can't just do things the way they've always been done; progress demands change.