De rerum natura (Latin (On the Nature of Things) is a first-century BC didactic poem by the Roman poet and philosopher Lucretius, 99 BC to 55 BC. :
English: "Even as children are flurried and dread all things in the thick darkness, thus we in the daylight fear at times things not a whit more to be dreaded than those which children shudder at in the dark and fancy sure to be. This terror therefore and darkness of the mind must be dispelled, not by the rays of the sun and glittering shafts of day, but by the aspect and law of nature."...
(Lucrecio, De Rerum Natura, II. 55-61
III.87-93 y VI.35-41) Traduccion del latin por Bernardo Berruecos Frank.