RENATO COLANGELO, MARK CONNORS, DAVID VAN ROYEN, VIVIAN COOPER SMITH , IAN TIPPETT
“’Tis an established maxim in metaphysics, That…nothing we imagine is absolutely impossible.
We can form the idea of a golden mountain, and from thence conclude that such a mountain may actually exist. We can form no idea of a mountain without a valley, and therefore regard it as impossible.”
David Hume ‘A Treatise of Human Nature’