Markets are not perfect, but well-designed ones come close.
"We all have a responsibility to bear witness to what we see and to speak out against injustice."
The ultimate meaning to which all stories refer has two faces: the continuity of life, the inevitability of death.
The truth is, I don't know what I would have done without mathematics.
我们今天关于海洋资源的每个决定都将在未来几十年产生影响。