The structure of the international system forces states to behave in certain ways, regardless of their internal characteristics.

君主对于有才能的贤良之人应当抬举，让他处于尊位，富贵绵长；对于没有能力且无德的人应当废弃，让他贫困低贱，成为受驱使的奴仆。

The hardest thing about being a leader is demonstrating or showing vulnerability... When the leader demonstrates vulnerability and sensibility and brings people together, the team wins.

我们对宇宙了解得越多，就越意识到我们还有多少尚未发现的东西。