For as children tremble and fear everything in the blind darkness, so we in the light sometimes fear what is no more to be feared than the things that children in the dark hold in terror and imagine will come true. This terror, therefore, and darkness of mind must be dispelled not by the rays of the sun and glittering shafts of daylight, but by the aspect and law of nature.
"On the Nature of Things" by Lucretius, Book II, lines 55 - 61 (tr. Rouse),