A Testimony of William Penn concerning early Friends:

They were changed men themselves before they went about to change others. Their hearts were rent as well as their garments, and they knew the power and work of God upon them… And as they freely received what they had to say from the Lord, so they freely administered it to others. The bent and stress of their ministry was conversion to God, regeneration and holiness, not schemes of doctrines and verbal creeds or new forms of worship, but a leaving off in religion the superfluous and reducing the ceremonious and formal part, and pressing earnestly the substantial, the necessary and profitable part, as all upon a serious reflection must and do acknowledge.

1694