A quote
This, he declares, is still more necessary for men like ourselves; for soldiers have often feared an enemy without reason, and the march which they thought most dangerous has in fact been most secure; but folly brings no repose, fear haunts it both in the van and in the rear of the column, and both flanks are in a panic. Folly is pursued, and confronted, by peril. It blenches at everything; it is unprepared; it is frightened even by auxiliary troops. But the wise man is fortified against all inroads; he is alert; he will not retreat before the attack of poverty, or of sorrow, or of disgrace, or of pain. He will walk undaunted both against them and among them.
Seneca·Letter 59 — On Pleasure and Joy (§8)·trans. Gummere