To Jenny Lee Date: ABERDEEN, May 26, 1763. MY DEAR SISTER, If you are likely to fall into a consumption, I believe nothing will save your life but the living two or three months upon buttermilk churned daily in a bottle. Change of air may do something, if you add riding every day. Else it will avail but little. Your conscience will not be clear unless you find fault wherever occasion requires. Thou shalt in any wise rebuke thy brother, and not suffer sin upon him. Regard none who speak otherwise. You have but one rule, the oracles of God. His Spirit will always guide you, according to His word. Keep close to Him, and pray for, dear Jenny, Your affectionate brother.