“The study of theology as it stands in Christian churches, is the study of nothing; it is founded on nothing; it rests on no principles; it proceeds by no authorities; it has no data; it can demonstrate nothing; and admits of no conclusion.”

“Before anything can be reasoned upon to a conclusion, certain facts, principles, or data, to reason from, must be established, admitted, or denied.”

“In view of all the foregoing reasons, I cannot but think the case conclusive, that neither form of the Doctrine of Authority can be maintained. We should abandon, as consistent thinkers, and still more as consistent Christians, the imperative authority both of Church Tradition and of Scripture. There is nothing left, then, but the Doctrine of Reason — the Method of Conviction as the only real method of determining religious belief and practice, resting on the use of the human rational powers taken in their entire compass.”

“To study philosophy is nothing but to prepare one’s self to die.”

“Nothing is easier than to admit in words the truth of the universal struggle for life, or more difficult--at least I have found it so--than constantly to bear this conclusion in mind.”

“The study of Euler's works will remain the best school for the different fields of mathematics and nothing else can replace it.”

“At bottom, I mean profoundly at bottom, the FBI has nothing to do with Communism, it has nothing to do with catching criminals, it has nothing to do with the Mafia, the syndicate, it has nothing to do with trust-busting, it has nothing to do with interstate commerce, it has nothing to do with anything but serving as a church for the mediocre. A high church for the true mediocre.”

“Study without desire spoils the memory, and it retains nothing that it takes in.”

“All abstract sciences are nothing but the study of relations between signs.”

“We have convictions only if we have studied nothing thoroughly.”