你必须无所畏惧。
The future of aquaculture lies in balancing ecological health with economic growth.
Energy companies have a responsibility to be part of the solution to climate change.
我们的教学方法只有一个，就是必须维持孩子们的高度兴趣和强烈持续的注意力。
我们对明天的唯一限制是我们今天的疑虑。
当真理还正在穿鞋的时候，谎言就能走遍半个世界。
The rule of recognition is the ultimate rule in a legal system, which identifies the criteria for valid law.
