A sustainable forest is one that supports both wildlife and livelihoods.

The truth is rarely pure and never simple.

The study of economics is ultimately the study of human behavior and its consequences.

文学是社会的镜子，反映了它的美德和缺陷。

The poet is a man who puts up a ladder to a star and climbs it while playing a violin.

Never stop learning because the world never stops changing.

建筑中最困难的事情是保持简单。

The beauty of mathematics is that it is universal.

拍卖的价值不仅在于产生的收益，还在于分配的效率。

利润和可持续性并不相互排斥；它们必须齐头并进。