In Paris Fashion: A Cultural History, Valerie Steele published a letter sent to Town and Country magazine in November 1771 by a reader who wanted to get something off of his chest: 

Whither are the manly vigor and athletic appearance of our forefathers flown? Can these be their legitimate heirs? Surely, no; a race of effeminate, self-admiring, emaciated fribbles can never have descended in a direct line from the heroes of Potiers and Agincourt...

Or:

Besides the devil, nothing was more dangerous to the immortal soul than film—at least, according to "The 'Movies'--The Greatest Religious Menace," published in the November 6, 1926 issue of The Pentecostal Evangel:

...[The screen artists'] beauty, their exquisite clothing, their lax habits and low moral standards, are becoming unconsciously appropriated by the plastic minds of American youth. Let them do what they may; divorce scandals, hotel episodes, free love, all are passed over and condoned by the young... The eye-gate is the widest and most easily accessible of all the avenues of the soul; whatever is portrayed on the screen is imprinted indelibly upon the nation's soul.

In Book III of Odes, circa 20 BC, Horace wrote:

Our sires' age was worse than our grandsires'. We, their sons, are more
worthless than they; so in our turn we shall give the world a progeny yet more
corrupt.