对黑洞的研究将我们带到了理解的边缘，在那里已知的物理定律失效，新的理论必须出现。
The study of black holes has led us to the edge of our understanding, where the known laws of physics break down and new theories must emerge.
The balance of power is the only way to maintain peace in the international system.
我不是市场计时者。我是价值投资者。