Spurious prudence, making the senses final, is the god of sots and cowards, and is the subject of all comedy. It is nature's joke, and therefore literature's. True prudence limits this sensualism by admitting the knowledge of an internal and real world.
Why, thou knowest I am as valiant as Hercules, but beware instinct. The lion will not touch the true prince. Instinct is a great matter. I was a coward on instinct.
Human nature is pretty well balanced; for every lacking virtue there is a rough substitute that will serve at a pinch--as cunning is the wisdom of the unwise, and ferocity the courage of the coward.