Quotes About Logic

There may be more danger in prejudices which are apparently founded in logic than in those which are acknowledged as emotions. (p69)

The human mind has never invented a labor-saving machine equal to algebra.

You can't reason someone out of a position they didn't reason themselves into.

Philosophy is nothing but common sense in a dress suit.

Answer a fool according to his folly.

The door to safety swings on the hinges of common sense.

Statistics can be made to prove anything - even the truth.

Horse sense, n.: Stable thinking.

A single fact can spoil a good argument.

Give a man a truth and he will think for a day. Show a man to reason and he will think for a lifetime.

Philosophy is a game with objectives and no rules. Mathematics is a game with rules and no objectives.

The fewer clear facts you have in support of an opinion, the stronger your emotional attachment to that opinion.

Walk the paths of logic. Every outcome has its cause, and every predicament has its solution. Every lock its key.

Memory builds itself without any clean or objective logic: a dot here, another dot here, and plenty of dark spaces in between. What we know is always evolving, always subdividing. Remember a memory often enough and you can create a new memory, the memory of remembering.

All day Marie-Laure lies on her stomach and reads. Logic, reason, pure science: these, Aronnax insists, are the proper ways to pursue a mystery. Not fables and fairy tales.

Logic. The principles of validity. Every lock has its key.

Siga a lógica. Todo efeito tem sua causa, e todo problema tem sua solução. Toda fechadura tem sua chave.

La lógica, la razón y la ciencia pura son las tres vías apropiadas, insiste Aronnax, para aproximarse al misterio.

Logic, reason, pure science: these, Aronnax insists, are the proper ways to pursue a mystery. Not fables and fairy tales.

It's only numbers, cadet…Pure math. You have to accustom yourself to thinking that way

Siga a lógica. Todo efeito tem sua causa, e todo problema tem sua solução. Toda fechadura tem sua chave. Você pode voltar para Paris ou permancer aqui ou seguir em frente.

But at the same time I recalled something Holmes had said to me many times, namely that when you have eliminated the impossible, whatever remains, however improbable, must be the truth.

Show Holmes a drop of water and he would deduce the existence of the Atlantic. Show it to me and I would look for a tap. That was the difference between us.

For example, the philosophers who were interested in logic were probably rather logical for mathematicians. But the ASL got us together, so we could talk to each other and publish in the same journal.