No other culture, no other epoch has portrayed nature with as much nostalgia, has projected, discovered and venerated in nature so rich a complex of meaning as the one which, gradually and paradoxically, ended by sanctifying history. Around the time of the French Revolution the frontiers of the universe suddenly seemed to melt away into infinity: the emancipation which the Enlightenment had worked in the domain of religion, philosophy, morality, education was a prelude to the inauguration of a new world which, with the effervescence of a spring wine, flooded the carefully delineated and organized landscape of traditional humanism. The powerful wind of Sturm und Drang now blew across the world, closed and arranged like a garden, in which man had hitherto seen the theater of his actions and his sentiments. From Rousseau on nature is no longer the enemy of the spirit, but the life-giving force of a world fulfilled in and for itself. No longer does nature draw its movement and meaning from man, but on the contrary it obliges him to strain his limited forces and pushes him out of himself and toward the great Whole, the ἕν καὶ πἇν from which he had painfully torn himself.