Quotes About Logic

Because our propositional reasoning frees us from similarity and stereotypes, it enables the highest achievements of human rationality, such as science, morality, and law.

Horses have an even number of legs. Behind they have two legs, and in front they have fore-legs. This makes six legs, which is certainly an odd number of legs for a horse. But the only number that is both even and odd is infinity. Therefore, horses have an infinite number of legs.

The beliefs, moreover, must be held in service of a goal. No one gets rationality credit for merely thinking true thoughts, like calculating the digits of ?

With this definition the case for rationality seems all too obvious: do you want things or don't you? If you do, rationality is what allows you to get them.

Nobody can prove that there is not between the Earth and Mars a china teapot revolving in an elliptic orbit.

El sometimiento de todas nuestras creencias a los juicios de la razón y las evidencias es una destreza antinatural, como la alfabetización y el cálculo, y ha de ser inculcada y cultivada.

Our hearts do not need logic. They can love and forgive and accept that which our minds cannot comprehend. Hearts understand in ways minds cannot.

I love Logic Audio and have been using it for years. All my track outputs used to come up on my old board in the same order as in the old Mac G4 - 1 through 32, came up as 1 through 32, for instance.

Each day my reason tells me so; But reason doesn't rule in love, you know.

A woman in love can't be reasonable - or she probably wouldn't be in love.

The only way one can guarantee one's loyalty is love. Loyalty is beyond logic, really.

There is no logical way to the discovery of these elemental laws. There is only the way of intuition, which is helped by a feeling for the order lying behind the appearance.

Insanity is often the logic of an accurate mind overtasked.

Love trumps logic?" "Every time.

You can't reason with your heart; it has its own laws, and thumps about things which the intellect scorns.

Reason is nothing less than the guardian of love

Of course, my socialist colleagues and I weren't out to hurt anyone – quite the reverse. We were out to improve things – but we were going to start with other people. I came to see the temptation in this logic, the obvious flaw, the danger – but could also see that it did not exclusively characterize socialism. Anyone who was out to change the world by changing others was to be regarded with suspicion. The temptations of such a position were too great to be resisted.

Now, strict logicians regard self-deception as an impossibility. They cannot understand how it is possible for a person to believe one thing and its opposite simultaneously. Logicians are not psychologists,

Gender is constructed, but an individual who desires gender re-assignment surgery is to be unarguably considered a man trapped in a woman's body (or vice versa). The fact that both of these cannot logically be true, simultaneously, is just ignored

before a problem can be solved it must be formulated precisely.

En estado natural, por decirlo de algún modo, a los seres humanos no les gusta pensar como lógicos, ni siquiera como empiristas. Hace falta entrenamiento para pensar así. Pero aun en ausencia de ese entrenamiento, seguimos pensando, aunque lo hacemos de manera más subjetiva, como seres -poco razonables-, idiosincráticos, emocionales que habitan unos cuerpos de tamaño determinado, con unas propiedades particulares y constreñidas.

In terms of the split between logic and emotion, you're always going to build airtight logical cases first and airtight emotional cases second. Why? Quite simply, by making the airtight logical case first, you satisfy your prospect's bullshit detector, which then frees them up to be moved emotionally.

people don't buy on logic; they buy on emotion, and then justify their decision with logic.

Jacob cut his gaze to me. I wasn't quiet sure how to convey, /I know we hate him, but based on the circumstances, it was the most logical thing to do/, with a nonverbal signal. I widened my eyes a little.