有补于天地曰功，有关于世教曰名，有学问曰富，有廉耻曰贵，是谓功名富贵；无为曰道，无欲曰德，无习于鄙陋曰文，无近于暧昧曰章，是谓道德文章。
有功于天地称为功，有关于世间名教称为名，有学问为富，有廉耻为贵，此即所谓功名富贵。无所求称为道，无欲念称为德，没有世俗的恶习称为文，处事有原则称为章，此即所谓的道德文章。
Every exhibition should be an experiment, a risk, a possibility.
现在数学家面临的最大问题可能是黎曼假设。
A woman must have money and a room of her own if she is to write fiction.
The key to performance is elegance, not battalions of special cases.