Quotes About Logic

If we change the definition of marriage to be more inclusive, then it is logical to argue that we should broaden the definition so that won't exclude anyone.

Numbers have a way of taking a man by the hand and leading him down the path of reason.

A MAN WITH A CONVICTION is a hard man to change. Tell him you disagree and he turns away. Show him facts or figures and he questions your sources. Appeal to logic and he fails to see your point.

There are things which seem incredible to most men who have not studied Mathematics.

Language is a form of human reason, which has its internal logic of which man knows nothing.

My father was the most rational and the most dispassionate of men.

Men are apt to mistake the strength of their feeling for the strength of their argument. The heated mind resents the chill touch and relentless scrutiny of logic.

He is unworthy of the name of man who is ignorant of the fact that the diagonal of a square is incommensurable with its side.

It is impossible to defeat an ignorant man in argument.

Chess is a very logical game and it is the man who can reason most logically and profoundly in it that ought to win.

The passions of men are commonly more potent than their reason.

The fool tells me his reason; the wise man persuades me with my own.

It is faith, and not reason, which impels men to action... Intelligence is content to point out the road, but never drives us along it.

Economics is haunted by more fallacies than any other study known to man

Each man does seek his own interest, but, unfortunately, not according to the dictates of reason.

Instinct guides the animal better than the man. In the animal it is pure, in man it is led astray by his reason and intelligence.

Teach a man to reason and he will think for a lifetime.

Man is a rational animal. He can think up a reason for anything he wants to believe.

The arena of logic was made by men for men; it was expressly founded on the exclusion of what is not male, as well as what is not Greek, not Christian, nor Western, not Aryan.

It is as impossible for man to demonstrate the existence of God as it would be for even Sherlock Holmes to demonstrate the existence of Arthur Conan Doyle.

It is useless to tell one not to reason but to believe; you might as well tell a man not to wake but sleep.

Man must not check his reason by tradition, but, contrariwise, must check tradition by reason.

It is wrong for a man to say that he is certain of the objective truth of any proposition unless he can produce evidence which logically justifies that certainty.

Procrastination is illogical from every viewpoint. It is like the man who wanted to cross the stream, so he sat on the bank to wait for all the water to run by.