Logic is not a theory but a reflexion of the world.

“Logic is also the theory of knowledge of Marxism, but for quite another reason, because the forms themselves of the activity of the ‘spirit’…

— Evald Vasilyevich Ilyenkov

By abstaining from all definite content, whether as formal logic and theory of science or as the legend of Being beyond all beings, philosophy…

— Theodor Adorno

Implication is thus the very texture of our web of belief, and logic is the theory that traces it.

— Willard Van Orman Quine

If a lack of empirical foundations is a defect of the theory of logical probability, it is also a defect of deductive logic.

— David Stove

“The wrong approaches to faith and to skepticism are equally detrimental to the path. For the former declares its answers too soon and is…

— Criss Jami

So how does one go about proving something like this? It's not like being a lawyer, where the goal is to persuade other people;…

— Paul Lockhart

Certainly in order to understand the natural world one needs clarity, logic, and the capacity for theory building. But that understanding tends to improve…

— Talal Asad

Just between you and me, shouldn’t the World Bank be encouraging MORE migration of the dirty industries to the LDCs [Less Developed Countries]?... I…

— Lawrence Summers

Never in all their history have men been able truly to conceive of the world as one: a single sphere, a globe, having the…

— Archibald MacLeish

Companies are not charitable enterprises: They hire workers to make profits. In the United States, this logic still works. In Europe, it hardly does.

— Paul Samuelson

Both fact and logic seem to me to support the view that savings invested in privately owned economic tools of production amount to an…

— F. A. Harper

“What you owe your critics are your RESULTS not explanations not defence just RESULTS.Evidence terminates Arguments.”

— Fela Durotoye

“When dealing with people, remember you are not dealing with creatures of logic, but with creatures bristling with prejudice and motivated by pride and…

— Dale Carnegie

If we were to expect the unexpected, then the unexpected would become expected, so we might as well say expect the expected, but then…

— Anonymous

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