In energy, the biggest risk is not taking any risks at all.

"The more you try to control the shadow, the more it controls you."

制造链式反应机器的基本点当然是确保每次裂变产生一定数量的中子，其中一些中子将再次产生裂变。

The realization that electronic properties can be topologically protected has revolutionized our understanding of solid-state physics.