法律体系是根据其自身的有效性标准而有效的规则体系。
A legal system is a system of rules which are valid according to the system's own criteria of validity.
The best ideas often come from the most unexpected places.
我相信爱和善良的力量。
The integration of technology and infrastructure is unstoppable.
想走得快，就独自前行；想走得远，就结伴同行。
对失意的人不要谈论得意的事，处于得意的时候不要忘记失意的日子。