sum and substance

Also found in: Idioms.
References in classic literature ?
Judging from what you all, say" remarked Aunt Jamesina, "the sum and substance is that you can learn -- if you've got natural gumption enough -- in four years at college what it would take about twenty years of living to teach you.
The sum and substance of the Kissinger/Scowcroft objection is this: War against Iraqis only acceptable if it is conducted under UN "authority," and with the aim of strengthening the world body's power.