自守表示的研究是数学抽象深度的反映。
在我们内心有一片广袤的未知领域，如果要解释我们的情感波动和风暴，就必须考虑到这片领域。
Trust is the most valuable resource in mining—harder to earn than any mineral.
The power of the legislative being derived from the people by a positive voluntary grant and institution, can be no other than what that positive grant conveyed, which being only to make laws, and not to make legislators, the legislative can have no power to transfer their authority of making laws to any other hands.
The most exciting discoveries often come from paying attention to unexpected results.
The history of mathematics is a history of human curiosity and ingenuity.