I have wrought great use out of evil tools.

When the world frowns, we can face it; but let it smile, and we are undone.

What mankind wants is not talent; it is purpose.

Fate is not the ruler, but the servant of Providence.

The commerce of intellect loves distant shores. The small retail dealer trades only with his neighbor; when the great merchant trades he links the four quarters of the globe.

Certain I am that every author who has written a book with earnest forethought and fondly cherished designs will bear testimony to the fact that much which he meant to convey has never been guessed at in any review of his work; and many a delicate beauty of thought, on which he principally valued himself, remains, like the statue of Isis, an image of truth from which no hand lifts the veil.

It may, indeed, be said that sympathy exists in all minds, as Faraday has discovered that magnetism exists in all metals; but a certain temperature is required to develop the hidden property, whether in the metal or the mind.