The concept of law involves the union of primary rules of obligation with secondary rules of recognition, change, and adjudication.

It is not the strongest of the species that survives, nor the most intelligent, but the one most responsive to change.  

The stock market is unpredictable in the short term, but predictable in the long term.

旅程比目的地更重要。

Writing is a way of exorcising demons and a process of self-discovery.

可持续性不仅是一种趋势，更是未来农业的基础。