Sustainability is not just a choice, it's our responsibility to the ocean and future generations.
种族差异不应在体育运动中发挥作用。
The whole of science is nothing more than a refinement of everyday thinking.
最好的艺术作品是那些随着时间的推移不断揭示新意义的作品。
The answers you get depend on the questions you ask.
The existence of a legal system is a matter of social fact.