Quotes About Logic

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.

Maybe the consequences of someone's unreason can be remedied only with a new unreason?

Someone engulfed by fury cannot think rationally.

When someone refuses listening to reason disaster will surely follow.

I have made the most important discovery of my career, the most important discovery of my life: It is only in the mysterious equations of love that any logic or reasons can be found.

People think love is an emotion. Love is good sense.

I love you, and beneath all that logic, calculation, and superstition, I know you love me too.

Try to reason about love, and you will lose your reason.

You fall in love with your heart; you fall out of love with your head.

As soon as somebody falls in love, all the wits seem to dribble out of the bottom of his head.

Logic cannot comprehend love; so much the worse for logic.

Nothing's random. Even if it looks that way, it's just because you don't know the causes.

Everything has reasons, even if they're not good ones. And the reasons have reasons.

As logic went, it was pretty impressive. I could tell because Mum's mouth was working like someone feeling a loose tooth, but she couldn't come up with any reason why Lily was wrong.

Love is very different from like, ... Like has reasons and logic,... it makes sense.

You want me to be rational. The most rational thing is the machine. Go to the machines. All their separate parts work together. But I live with no purpose, irrationally.

That passage makes, clearly and for the first time, the crucial distinction between rejecting an argument for a conclusion and rejecting the conclusion itself. The art of criticism cannot thrive unless that distinction is grasped. (pp51)

Ockham's razor is only a methodological principle, not a necessary truth

This dictate of common sense.

Scottish philosopher William Drummond, read: "He who will not reason is a bigot; he who cannot reason is a fool; he who dares not reason is a slave.

If you think that moral reasoning is something we do to figure out the truth, you'll be constantly frustrated by how foolish, biased, and illogical people become when they disagree with you. But if you think about moral reasoning as a skill we humans evolved to further our social agendas—to justify our own actions and to defend the teams we belong to—then things will make a lot more sense.

Reasoning can take you wherever you want to go.

But when secular organizations demand sacrifice, every member has a right to ask for a cost-benefit analysis, and many refuse to do things that don't make logical sense. In other words, the very ritual practices that the New Atheists dismiss as costly, inefficient, and irrational turn out to be a solution to one of the hardest problems humans face: cooperation without kinship.

Human rationality depends critically on sophisticated emotionality. It is only because our emotional brains works so well that our reasoning can work at all.