Genius is nothing but a greater aptitude for patience.

The style is the man himself.

The discoveries that one can make with the microscope amount to very little, for one sees with the mind's eye and without the microscope the real existence of all these little beings.

Writing well is at one and the same time good thinking, good feeling, and good expression; it is having wit, soul, and taste, all together.

The human mind cannot create anything. It produces nothing until after having been fertilized by experience and meditation; its acquisitions are the gems of its production.