关于幸福，你只有在失去它的时候才知道你曾经拥有过。
The thing about happiness is that you only know you had it when it's gone.
交易成功的关键是情绪纪律。
The coal industry must evolve or risk becoming obsolete. Adaptation is the key to survival.
I'm not a businessman; I'm a business, man.
生物学的美在于它的复杂性和解决方案的优雅。