A legal system is a system of rules which are valid according to the system's own criteria of validity.

二十年的爱情让女人犹如一片断痕残壁，但二十年的婚姻则让她好似一栋公共建筑。

Collaboration across borders is not optional - it's essential for solving the global challenges in aquaculture.

宇宙不仅比我们想象的更奇怪，它比我们能够想象的还要奇怪。

生命中最美丽的东西不是物品，而是时刻。