“Before you can ask 'Is Darwinian theory correct or not?', You have to ask the preliminary question 'Is it clear enough so that it could be correct?'. That's a very different question. One of my prevailing doctrines about Darwinian theory is 'Man, that thing is just a mess. It's like looking into a room full of smoke.' Nothing in the theory is precisely, clearly, carefully defined or delineated. It lacks all of the rigor one expects from mathematical physics, and mathematical physics lacks all the rigor one expects from mathematics. So we're talking about a gradual descent down the level of intelligibility until we reach evolutionary biology.”

“If you have, let us say, a theory about man, and if you can only prove it by talking about Plato and George Washington, your theory may be a quite frivolous thing. But if you can prove it by talking about the butler or the postman, then it is serious, because it is universal. So far from it being irreverent to use silly metaphors on serious questions, it is one's duty to use silly metaphors on serious questions. It is the test of one's seriousness. It is the test of a responsible religion or theory whether it can take examples from pots and pans and boots and butter-tubs. It is the test of a good philosophy whether you can defend it grotesquely. It is the test of a good religion whether you can joke about it.”

“The difference between Lorentz's Transformation in Lorentz's theory and Lorentz's Transformation in Einstein's Special Relativity is not mathematical but ontological and epistemological and, being so, it was to be expected the emergence of historians, scientists, and philosophers that, not having understood in depth the philosophical content and transcendence of the theory, would minimize Einstein's contribution.”

“Life is not mathematics, and few things have only one correct answer”

“With the possible exception of the higher reaches of pure mathematics or theoretical physics, one can scarcely imagine anything more inhuman than philosophy. Its worship of logic in all its cold, crystalline purity; its determination to stride the bleak and icy mountaintops of theory and abstraction: to be a philosopher is to be existentially deracinated. Philosophers should be offered condolences rather than encouragement.”

“Experience by itself teaches nothing... Without theory, experience has no meaning. Without theory, one has no questions to ask. Hence, without theory, there is no learning.”