Roofs Quotes

A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between proofs and the best mathematician can notice analogies between theories.

I mean the word proof not in the sense of the lawyers, who set two half proofs equal to a whole one, but in the sense of a mathematician, where half proof = 0, and it is demanded for proof that every doubt becomes impossible.

To be capable of steady friendship or lasting love, are the two greatest proofs, not only of goodness of heart, but of strength of mind.

One unerring mark of the love of truth is not entertaining any proposition with greater assurance than the proofs it is built upon will warrant.

In this connection, faith and experience teach us many truths by means of the short-cut of authority and by the proofs of very pleasant and agreeable feelings.