Topological insulators are a prime example of how theoretical predictions can lead to experimental discoveries that reshape our understanding of the physical world.
真相很少是纯粹的，也从来不是简单的。
真正的创新源于好奇心和挑战未知的勇气。
我认为你不应该对任何事情感到后悔。一切事情的发生都有其原因。
The balance of power is the only way to maintain peace in the international system.