The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.

Sustainability isn't a cost center - it's the ultimate competitive advantage.

人是生而自由的，但却无往不在枷锁之中。

Contentment is natural wealth，luxury is artificial poverty.

“柠檬问题”指的是当卖家比买家掌握更多信息时，评估产品质量的困难。