Confusion Quote by Rudolf Carnap

“define logic as the science which treats of the operations of the human understanding in the pursuit of truth.”

— John Stuart Mill

Logic is not only an exact science, but is the most simple and elementary of all sciences; it ought therefore undoubtedly to find some…

— William Stanley Jevons

“Logic is the science not of external forms of thought, but of the laws of development "of all material, natural and spiritual things", i.e.,…

— Vladimir Ilyich Lenin

“Logic may be conceived as ruling out what is absolutely impossible, and thus determining the field of what in the absence of empirical knowledge…

— Morris F. Cohen

Logic is essentially a tool for getting at truth; it is the tool, for without it no reasoning is possible in any field of…

— David Oderberg

Logic is the science of the laws of thought, as thought,--that is of the necessary conditions to which thought considered in itself is a…

— Sir William Hamilton, 9th Baronet

Logic is the hygiene the mathematician practices to keep his ideas healthy and strong.

— Hermann Weyl

Logic takes care of itself; all we have to do is to look and see how it does it.

— Ludwig Wittgenstein

Logic is justly considered the basis of all other sciences, even if only for the reason that in every argument we employ concepts taken…

— Alfred Tarski

Logic and metaphysics make use of more tools than all the rest of the sciences put together, and do the least work.

— Charles Caleb Colton

Logic is the anatomy of thought

— John Locke

Logic is the beginning of wisdom, not the end.

— Leonard Nimoy