So far from youth being the happiest period of life, there is much more truth in the remark made by Plato, at the beginning of the _Republic_, that the prize should rather be given to old age, because then at last a man is freed from the animal passion which has hitherto never ceased to disquiet him. Nay, it may even be said that the countless and manifold humors which have their source in this passion, and the emotions that spring from it, produce a mild state of madness; and this lasts as long as the man is subject to the spell of the impulse--this evil spirit, as it were, of which there is no riddance--so that he never really becomes a reasonable being until the passion is extinguished.
There is no doubt that, in general, and apart from individual circumstances and particular dispositions, youth is marked by a certain melancholy and sadness, while genial sentiments attach to old age; and the reason for this is nothing but the fact that the young man is still under the service, nay, the forced labor, imposed by that evil spirit, which scarcely ever leaves him a moment to himself. To this source may be traced, directly or indirectly, almost all and every ill that befalls or menaces mankind. The old man is genial and cheerful because, after long lying in the bonds of passion, he can now move about in freedom.
Still, it should not be forgotten that, when this passion is extinguished, the true kernel of life is gone, and nothing remains but the hollow shell; or, from another point of view, life then becomes like a comedy, which, begun by real actors, is continued and brought to an end by automata dressed in their clothes.
However that may be, youth is the period of unrest, and age of repose; and from that very circumstance, the relative degree of pleasure belonging to each may be inferred. The child stretches out its little hands in the eager desire to seize all the pretty things that meet its sight, charmed by the world because all its senses are still so young and fresh. Much the same thing happens with the youth, and he displays greater energy in his quest. He, too, is charmed by all the pretty things and the many pleasing shapes that surround him; and forthwith his imagination conjures up pleasures which the world can never realize. So he is filled with an ardent desire for he knows not what delights--robbing him of all rest and making happiness impossible. But when old age is reached, all this is over and done with, partly because the blood runs cooler and the senses are no longer so easily allured; partly because experience has shown the true value of things and the futility of pleasure, whereby illusion has been gradually dispelled, and the strange fancies and prejudices which previously concealed or distorted a free and true view of the world, have been dissipated and put to flight; with the result that a man can now get a juster and clearer view, and see things as they are, and also in a measure attain more or less insight into the nullity of all things on this earth.