法律体系的存在以承认规则的存在为前提。
The existence of a legal system presupposes the existence of a rule of recognition.
The purpose of architecture is to create a conducive environment for life to flourish.
种一棵树最好的时间是20年前，其次是现在。
Success is not the key to happiness. Happiness is the key to success.
我说运气是当机会来临时，你已经准备好了。
幸福取决于我们自己。