我经常思考劳动和时间。

凡事天下要考察有无的原则，必定是以众人的耳目所见所闻的实情以知有与无来作为标准的。 

The meaning of life lies in the experience, not the outcome.

The end of history is not the end of events, but the end of the evolution of human political and social institutions.

The idea of justice is not the same as the idea of law.

经济研究应旨在为现实世界的决策提供信息。

最成功的公司是那些能够适应变化并重塑自我的公司。