Life is a song, sing it.
数学的美在于它能够以最优雅的方式描述宇宙。
Farmers are the original environmentalists; we just need to give them the right tools.
The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.
在观察的领域里，机遇只偏爱那种有准备的头脑。