合同本质上是不完全的，因为不可能预见所有未来的偶然事件。

"What you don't know can't hurt you, but it can kill you."

"History is not the story of strangers, aliens from another realm; it is the story of us had we been born a little earlier."

国家是为法律而组织起来的人民。

可持续发展不再是可选项，而是任何希望在未来蓬勃发展的企业的必需品。