数学的研究是所有智力和精神进步不可或缺的基础。

The state of nature has a law of nature to govern it, which obliges every one: and reason, which is that law, teaches all mankind, who will but consult it, that being all equal and independent, no one ought to harm another in his life, health, liberty, or possessions.

数学的真正乐趣在于发现的过程，而不仅仅是结果。