The choices you make in your 20s will define your 30s and beyond.
The international system is inherently competitive, and states are constantly trying to outmaneuver each other.
创新不仅仅是技术的问题,更是思维方式的问题。
自然的统一性并非体现在其定律的简单性上,而是体现在它们相互作用的和谐中。