爱是对人类存在问题的唯一理智和令人满意的答案。
Love is the only sane and satisfactory answer to the problem of human existence.
The highest manifestation of life consists in this: that a being governs its own actions. A thing which is always subject to the direction of another is somewhat of a dead thing.
经济周期的福利成本并非周期本身，而是个体无法随时间平滑消费的能力。