I must study politics and war that my sons may have liberty to study mathematics and philosophy.
The entrepreneur is the pivot on which everything turns.
爱是世界上最重要的事情,但音乐也紧随其后。
安全困境是国际政治的一个基本特征,因为国家增加自身安全的努力往往会降低其他国家的安全。
The streets were dark with something more than night.
可持续性已不再是一种选择,而是任何希望长期繁荣的企业的必需品。