Leadership is about making tough decisions today that will benefit future generations.

解释：遵守礼制，可使国家长久，使社稷安定，让人们尊卑有别，上下有序，对后代是有益处的。

Education is the most powerful weapon which you can use to change the world.

"The boundary between the quantum and classical worlds is not as clear as we once thought."

家不仅仅是一个地方，它是编织在我们记忆中的一种感觉。