数学的乐趣在于发现的旅程,而不仅仅是目的地。
成功的真正标准是我们对多少人的生活产生了积极影响,而不仅仅是收入数字。
The only sensible ends of literature are, first, the pleasurable toil of writing; second, the gratification of one's family and friends; and lastly, the solid cash.