人们为了自己幸福，会让别人不幸。
La poesía es la única prueba concreta de la existencia del hombre.
你必须相信你的长期计划，但你需要短期目标来激励和启发你。
Life is an adventure, dare it.
The world is so large and so small at the same time.
Good econometrics is like good carpentry—it's all about using the right tool for the job.
The first love is only a little foolishness and a lot of curiosity.