The true value of a mathematician lies in the problems they leave behind.
Every barrel we process must carry the weight of our environmental responsibility.
小说是一面沿着大路行走的镜子。
Sustainable mining isn't an option anymore - it's our responsibility to future generations.
The magi, as you know, were wise men—wonderfully wise men—who brought gifts to the Babe in the manger. They invented the art of giving Christmas presents. Being wise, their gifts were no doubt wise ones, possibly bearing the privilege of exchange in case of duplication.