"No man can visualize four dimensions, except mathematically ... I think in four dimensions, but only abstractly. The hum..."

"Was mich eigentlich interessiert, ist, ob Gott die Welt hätte anders machen können; das heisst, ob die Forderung der l..."

"For scientific endeavor is a natural whole the parts of which mutually support one another in a way which, to be sure, n..."