"G.K. Chesterton said something somewhere" is said by all who have read Chesterton because he seems to have said wise things about every topic for every generation. He lived in the early 20th century and spoke as if he lived today. I linked a copy of an article about Chesterton's views on homosexuality but I wanted to pull some quotes from him for quicker reading and obvious application.
“The next great heresy will be an attack on morality, especially sexual morality.”
“the effect of treating sex as only one innocent natural thing was that
every other innocent natural thing became soaked and sodden with sex.
For sex cannot be admitted to a mere equality among elementary emotions
or experiences like eating and sleeping. The moment sex ceases to be a
servant it becomes a tyrant.”
“Decadents may like living in a dream which they can alter at any moment
to suit themselves, in which they can create causes without creating
consequences, in which they can pervert the future or unmake the past.
But I think a decent working man of any class, whether he is working at
cube roots or cabbage roots, ought to be glad that, as he sows, so shall
he surely reap.”
“This triangle of truisms, of father, mother and child, cannot be
destroyed; it can only destroy those civilizations which disregard it.”