Philosophy becomes poetry, and science imagination, in the enthusiasm of genius.

A circle may be small, yet it may be as mathematically beautiful and perfect as a large one.

The art of quotation requires more delicacy in the practice than those conceive who can see nothing more in a quotation than an extract.

Those who do not read criticism will rarely merit to be criticised.

Those who never quote, in return are never quoted.

Education, however indispensable in a cultivated age, produces nothing on the side of genius. When education ends, genius often begins.

If the golden gate of preferment is not usually opened to men of real merit, persons of no worth have entered it in a most extraordinary manner.