Knowledge of what is does not open the door directly to what should be. If one asks the whence derives the authority of fundamental ends, since they cannot be stated and justified merely by reason, one can only answer: they exist in a healthy society
Reality is merely an illusion, although a very persistent one
Mere unbelief in a personal God is no philosophy at all.
The formulation of a problem is often more essential than its solution, which may be merely a matter of mathematical or experimental skill.
Space by itself, and time by itself, are doomed to fade away into mere shadows, and only a kind union of the two will preserve an independent reality.
Common sense is merely the deposit of prejudice laid down in the human mind before the age of 18