"A man who does not think for himself does not think at all."

可持续性不是一种选择；它是我们对下一代的责任。

你给予的越多，得到的也越多。

"History is not the past—it is the method we have evolved of organizing our ignorance of the past."

数学证明的优雅常常反映了它所描述的算法的效率。