膨胀的概念是宇宙在其最早的时刻经历了一段极其迅速的扩张期。
The idea of inflation is that the universe underwent a period of extremely rapid expansion in its earliest moments.
The dead are never really gone until the living stop remembering them.
要做出不错的东西,要大胆去做它。要想做出好的东西,需要一次又一次去做。做好东西的秘诀在于重新去做。
教师个人的范例,对于青年人的心灵,是任何东西都不可能代替的最有用的阳光。