That which the people called Quakers lay down as a main fundamental in religion is this- That God, through Christ, hath placed a principle in every man, to inform him of his duty, and to enable him to do it; and that those that live up to this principle are the people of God, and those that live in disobedience to it, are not God's people, whatever name they may bear, or profession they may make of religion. This is their ancient, first, and standing testimony: with this they began, and this they bore, and do bear to the world.
William PennExcess in apparel is another costly folly. The very trimming of the vain world would clothe all the naked ones.
William PennBy liberty of conscience, we understand not only a mere liberty of the mind, in believing or disbelieving this or that principle or doctrine; but the exercise of ourselves in a visible way of worship, upon our believing it to be indispensably required at our hands, that if we neglect it for fear of favor of any mortal man, we sin and incur divine wrath.
William Penn