Laudator Temporis Acti

Who wrote this and approximately when? No googling! The answer follows the quotation. I've altered the orthography and punctuation slightly.

I say we had best look our times and lands searchingly in the face, like a physician diagnosing some deep disease. Never was there, perhaps, more hollowness at heart than at present, and here in the United States. Genuine belief seems to have left us. The underlying principles of the States are not honestly believed in (for all this hectic glow, and these melodramatic screamings) nor is humanity itself believed in. What penetrating eye does not everywhere see through the mask? The spectacle is appalling. We live in an atmosphere of hypocrisy throughout. The men believe not in the women, nor the women in the men. A scornful superciliousness rules in literature. The aim of all the littérateurs is to find something to make fun of. A lot of churches, sects, etc., the most dismal phantasms I know, usurp the name of religion. Conversation is a mass of badinage. From deceit in the spirit, the mother of all false deeds, the offspring is already incalculable....The depravity of the business classes of our country is not less than has been supposed, but infinitely greater. The official services of America, national, state, and municipal, in all their branches and departments, except the judiciary, are saturated in corruption, bribery, falsehood, mal-administration; and the judiciary is tainted. The great cities reek with respectable as much as non-respectable robbery and scoundrelism. In fashionable life, flippancy, tepid amours, weak infidelism, small aims, or no aims at all, only to kill time. In business (this all-devouring modern word, business) the one sole object is, by any means, pecuniary gain. The magician's serpent in the fable ate up all the other serpents; and money-making is our magician's serpent, remaining today sole master of the field.

Walt Whitman, Democratic Vistas (1871). Plus ça change, plus c'est la même chose.

By the "fable" Whitman means Exodus 7:9-12:

When Pharaoh shall speak unto you, saying, Shew a miracle for you: then thou shalt say unto Aaron, Take thy rod, and cast it before Pharaoh, and it shall become a serpent. And Moses and Aaron went in unto Pharaoh, and they did so as the Lord had commanded: and Aaron cast down his rod before Pharaoh, and before his servants, and it became a serpent. Then Pharaoh also called the wise men and the sorcerers: now the magicians of Egypt, they also did in like manner with their enchantments. For they cast down every man his rod, and they became serpents: but Aaron's rod swallowed up their rods.