[162] Look at the cultivated vine, how marvellously it is furnished by nature with young shoots, and tendrils, and suckers, and leaves redolent of wine, which, though they utter no voice, do nevertheless indicate the joy of the tree at the coming fruit. And the day also laughs in anticipation of the early dawn, when the sun is about to rise; for one ray is a messenger of another, and one beam of light, as the forerunner of another though more obscure, is still a herald of that which shall be brighter.