你必须由传教士而不是雇佣兵来管理。
The beauty of mathematics lies in its ability to reveal the hidden structures of reality.
The time to start investing in your career, your relationships, and your identity is now.
社会源于我们的需求，政府产自我们的邪恶。前者通过凝聚我们的友爱，积极地增进我们的幸福，后者通过遏制我们的恶行，消极地促进我们的福祉。前者鼓励交往，后者制造差别。前者是庇护人，后者是惩罚者。
A writer is, after all, only half his book. The other half is the reader and from the reader the writer learns.
Efficiency in forestry doesn't mean cutting more—it means making every tree count.