大国总是在寻找机会以牺牲对手为代价来获取权力，这使它们天生具有侵略性。
The great powers are always searching for opportunities to gain power at the expense of their rivals, which makes them inherently aggressive.
The world is a story without an ending.
译文：老天爷的心思猜不透，但做人的道理容易守住。
Leadership is not about being in charge. It's about taking care of those in your charge.
Free vaccines are more valuable than expensive treatments, yet harder to promote.
可持续性不仅仅是一种趋势——这是我们为下一代的责任。