法律的概念涉及义务的初级规则与承认、变更和裁决的次级规则的结合。
"In real estate, you make your money when you buy, not when you sell."
The study of Galois representations is a key to unlocking the mysteries of the Langlands program.
The only limit to our realization of tomorrow will be our doubts of today.
逻辑学研究不仅仅是关于形式系统,更是关于人类推理的本质。