Advice to Little Girls
Brain Pickings has a post on the recent release of the Mark Twain book Advice to Little Girls which he wrote in 1865 at the age of 30.
Me being me, I very easily see this as Advice to Little "Girls," thus bringing gay boys into the mix.
Among Twain's advice is:
If at any time you find it necessary to correct your brother, do not correct him with mud — never, on any account, throw mud at him, because it will spoil his clothes. It is better to scald him a little, for then you obtain desirable results. You secure his immediate attention to the lessons you are inculcating, and at the same time your hot water will have a tendency to move impurities from his person, and possibly the skin, in spots.
If your mother tells you to do a thing, it is wrong to reply that you won’t. It is better and more becoming to intimate that you will do as she bids you, and then afterward act quietly in the matter according to the dictates of your best judgment.