A simile, to be perfect, must both illustrate and ennoble the subject; must show it to the understanding in a clearer view, and display it to the fancy with greater dignity; but either of these qualities may be sufficient to recommend it.... That it may be complete, it is required to exhibit, independently of its references, a pleasing image; for a simile is said to be a short episode.
Samuel JohnsonTimidity is a disease of the mind, obstinate and fatal; for a man once persuaded that any impediment is insuperable has given it, with respect to himself, that strength and weight which it had not before.
Samuel Johnson