“Even things that are true can be proved.”

“To the atheist, the world is filled with madness and crazy people who believe in superstitions that cannot even prove to be true.”

“What is democracy? True democracy means the holding of power by the laboring masses. Are laborers unqualified to hold power? Yugoslavia has taken this road and proved to us that even without dictatorial rulers, big or small, the people can work even better.”

“What a silly thing love is! It is not half as useful as logic, for it does not prove anything and it is always telling one things that are not going to happen, and making one believe things that are not true.”

“All things are possible until they are proved impossible — and even the impossible may only be so, as of now.”

“There are very few things that can be proved rigorously in condensed matter physics.”

“This too is a truth well known to everyone who has taken even a slight hold of culture, that freedom is an honorable thing, and slavery a disgraceful thing, and that honorable things are associated with good men and disgraceful things with bad men. Hence, it clearly follows that no person of true worth is a slave, though threatened by a host of claimants who produce contracts to prove their ownership.”

“Johnnie, the nice thing about citing God as an authority is that you can prove anything you set out to prove. It’s just a matter of selecting the proper postulates, then insisting that your postulates are ‘inspired.’ Then no one can possibly prove that you are wrong.”

“There is danger, and no negligible one, to speak of God even the things that are true.”

“How like fish we are: ready, nay eager, to seize upon whatever new thing some wind of circumstance shakes down upon the river of time! … Even so, I think there is some virtue in eagerness, whether its object prove true or false.”