操场是民主的实验室。

奚落是庸才对天才的颂歌。

自然是所有化学变化得以实现的伟大实验室。

The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.

质量从来不是偶然的；它始终是智慧努力的结果。

理论物理学的美在于它能够揭示支配宇宙的隐藏对称性和模式。