法律的概念涉及主要规则和次要规则的结合。
The concept of law involves the union of primary and secondary rules.
你额头的汗水赚取的收入应该以最低的税率征税,而不是最高的税率。资本收益应该以更高的税率征税。
量子世界和经典世界之间的界限并不像我们曾经认为的那样清晰。
"You have to be able to confront reality but also inspire hope."