The difficulty, my friends, is not in avoiding death, but in avoiding unrighteousness; for that runs faster than death.
谷物生产的创新不仅仅是技术问题,更是思维方式的转变。
光的理论实际上是物理学两大理论的交汇点,即粒子理论和波动理论。
Diplomacy is not only about affairs between nations, but also involves global issues and the interests of all humanity.
Strive for excellence, not mediocrity.