Quotes About Logic

It is of interest that from the seventeenth century the word 'vicious' was used to describe a fault in logic, when a conclusion was realized by false means of reasoning. Webster's third definition of the vicious circle cites this fault in logic: 'an argument which is invalid because its conclusion rests upon a premise which itself depends on the conclusion.

What can be asserted without proof can be dismissed without proof.

To be against rationalization is not the same as to be opposed to reasoning.

The elementary rules of logic: that extraordinary claims require extraordinary evidence and that what can be asserted without evidence can also be dismissed without evidence.

What can be asserted without proof can be dissmissed without proof.

What can be asserted without evidence can also be dismissed without evidence. This is even more true when the "evidence" eventually offered is so shoddy and self-interested.

At a certain point talk about 'essence' and 'oneness' and the universal becomes more tautological than inquisitive.

There are all kinds of stupid people that annoy me but what annoys me most is a lazy argument." -

the razor of Ockham is clean and decisive.

The voice of reason is small, but very persistent.

The spirit of our accurate and exact philosophy is outraged by conclusions that contradict each other so glaringly.

Faith of that sort—the sort that can stand up at least for a while in a confrontation with reason—is now plainly impossible.

the testing of assertions on the anvils of logic and verifiable fact.

The rules of all intellectual activity Ã¢â'¬â€œ whether scientific or non-scientific Ã¢â'¬â€œ spin down to one golden precept: the testing of assertions on the anvils of logic and verifiable fact. For an argument to obtain, it must make sense rationally and empirically.

El sueño de la razón produce monstruos. "The sleep of reason," it has been well said, "brings forth monsters.

The very best that can be said is that he uttered a string of fatuous non sequiturs. There is not even a strand of chewing gum to connect the premise to the conclusion;

A life without truth is illogical. Surak wrote that the truth is simply the actual state of the universe. To live at odds with the truth is to be in conflict with reality itself. Such an existence is unsustainable.

Give in to your passions and they will lead you to the most preposterous conclusions—passions make a fool of reason.

From now on you're going to have to think. There's a reason why we're born with brains in our heads, not rocks.

Give men your ear, but not your heart. Show respect for those in power, but don't follow them blindly. Judge with logic and reason, but comment not.

let no one rule your mind or body. Take special care that your thoughts remain unfettered. One may be a free man and yet be bound tighter than a slave. Give men your ear, but not your heart. Show respect for those in power, but don't follow them blindly. Judge with logic and reason, but comment not

On its own, being a decent person is no guarantee that you will act well, which brings us back to the one protection we have against demagogues, tricksters, and the madness of crowds, and our surest guide through the uncertain shoals of life: clear and reasoned thinking. Logic will never fail you, unless you're unaware of—or deliberately ignore—the consequences of your deeds.

First, let no one rule your mind or body. Take special care that your thoughts remain unfettered. One may be a free man and yet be bound tighter than a slave. Give men your ear, but not your heart. Show respect for those in power, but don't follow them blindly. Judge with logic and reason, but comment not.

En primer lugar, no dejéis que nadie gobierne vuestra mente ni vuestro cuerpo y emplead especial atención para no poner límites a vuestras ideas porque se puede ser un hombre libre a pesar de sufrir ataduras más fuertes que las de un esclavo. Escuchad a los hombres, pero no os entreguéis a ellos en cuerpo y alma. Sed respetuosos con los que ostentan el poder, pero no los sigáis ciegamente. Juzgad con lógica y con razón, pero no hagáis comentarios.