Legal rules are not merely commands backed by threats; they are also rules that confer powers and create obligations.
法律规则不仅仅是威胁支持的命令;它们也是赋予权力和创造义务的规则。
成功的关键是坚持。
每个数学问题都有解决方案,但并非每个解决方案都显而易见。