タブラ・ラーサ
13世紀にトマス・アクィナスが議論に提起した。当時は知識の本体は天界にあり生まれるときに肉体に合わさるという説が主流であった。
But the human intellect, which is the lowest in the order of intellects and the most removed from the perfection of the Divine intellect, is in potency with regard to things intelligible, and is at first "like a clean tablet on which nothing is written", as the Philosopher [Aristotle] says. — Aquinas, Summa Theologica 1.79.2.