Date: 1644, 1647

"It must be realized that the human soul, while informing the entire body, nevertheless has its principal seat in the brain."

— Descartes, René (1596-1650)

Date: 1714

"There is an infinity of past and present shapes and motions that enter into the efficient cause of my present writing"

— Leibniz, Gottfried Wilhelm (1646-1716)

Date: 1714

Souls, "in general, are living mirrors or images of the universe of creatures."

— Leibniz, Gottfried Wilhelm (1646-1716)

Date: 1714

Each "mind [is] like a little divinity in its own realm."

— Leibniz, Gottfried Wilhelm (1646-1716)