Nothing is in the intellect that was not first in the senses.
Notes from Wikiquote
This is known as the Peripatetic axiom.
Charity, by which God and neighbor are loved, is the most perfect friendship.
It must be said that charity can, in no way, exist along with mortal sin.
Quote text and notes from Wikiquote: Thomas Aquinas (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.