Quaker Testimonies on the Plain Language Witness
Quaker Spirituality and the Use of Plain Speech
Elizabeth Gurney Fry, Quaker humanitarian (1780-1845)
I used to think and do now how little dress matters. But I find it almost impossible to keep to the principles of Friends without altering my dress and speech. . . . They appear to me a sort of protector to the principles of Christianity in the present state of the world.
THEREFORE all keep down that Spirit of the World that runs into so many Fashions to please the Lust of the Eye, the Lust of the Flesh, and the Pride of Life: And Fashion not your selves according to your former Lust of Ignorance; and let the time past be sufficient in which you have lived according to the Lusts of Men, and the Course of the World, that the rest of your life you may live to the Will of God, taking no thought what ye shall Eat, what ye shall Drink, or what ye shall put on; and therein your Lives ...
I am not Amish or Mennonite, but some people who come to my website are interested in knowing more about these groups. I can recommend these books as authoritative and relatively inexpensive sources of further information.