Proposition Quotes
Pure mathematics consists entirely of assertions to the effect that, if such and such a proposition is true of anything, then such and such another proposition is true of that thing. It is essential not to discuss whether the first proposition is really true, and not to mention what the anything is, of which it is supposed to be true. [...] Thus mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true. People who have...
Bertrand Russell
Conceive the condition of the human mind if all propositions whatsoever were self-evident except one, which was to become self-evident at the close of a summer’s day, but in the meantime might be the subject of question, of hypothesis, of debate. Art and philosophy, literature and science, would fasten like bees on that one proposition which had the honey of probability in it, and be the more eager because their enjoyment would end with sunset. Our impulses, our spiritual activities, no more...
George Eliot
The truth is that so long as we hold both sides of the proposition together they contain nothing inconsistent with right belief, but as soon as one is divorced from the other, it is bound to prove a stumbling block. "Only those who believe obey" is what we say to that part of a believer's soul which obeys, and "only those who obey believe" is what we say to that part of the soul of the obedient which believes. If the first half of the proposition stands alone, the believer is exposed to the...
Dietrich Bonhoeffer
But are there philosophical problems? The present position of English philosophy - my point of departure - originates, I believe, in the late Professor Ludwig Wittgenstein's doctrine that there are none; that all genuine problems are scientific problems; that the alleged propositions or theories of philosophy are pseudo-propositions or pseudo-theories; that they are not false (if they were false, their negations would be true propositions or theories) but strictly meaningless combinations of...
Karl Popper
When any person harms you, or speaks badly of you, remember that he acts or speaks from a supposition of its being his duty. Now, it is not possible that he should follow what appears right to you, but what appears so to himself. Therefore, if he judges from a wrong appearance, he is the person hurt, since he too is the person deceived. For if anyone should suppose a true proposition to be false, the proposition is not hurt, but he who is deceived about it. Setting out, then, from these...
Epictetus