天文学的美在于它能够将我们与浩瀚的宇宙连接起来。

能量守恒定律不仅仅是一个抽象原则；它是已被无数实验验证的自然法则。

The healthy social life is found when in the mirror of each human soul the whole community finds its reflection, and when in the community the virtue of each one is living.

不要着急，最好的总会在最不经意的时候出现。