Susanna Wesley on sin

Take this rule: whatever weakens your reason, impairs the tenderness of your conscience, obscures your sense of God, or takes off the relish of spiritual things; in short, whatever increases the strength and authority of your body over mind, that thing is sin to you, however innocent it may be in itself.
from Susanna Wesley: The Complete Writings, by Susanna Annesley Wesley, Susanna Wesley, and Charles Wallace, Oxford University Press US, 1997, p. 109. Susanna Wesley was the mother of John and Charles Wesley.