Logic is like the sword -- those who appeal to it, shall perish by it.
Logic is a poor guide compared with custom.
The mind has its own logic but does not often let others in on it.
Man is not logical and his intellectual history is a record of mental reserves and compromises. He hangs on to what he can in his old beliefs even when he is compelled to surrender their logical basis.
From a drop of water a logician could infer the possibility of an Atlantic or a Niagara without having seen or heard of one or the other.
Logic, like whiskey, loses its beneficial effect when taken in too large quantities.
Reason can wrestle and overthrow terror.
The much vaunted male logic isn't logical, because they display prejudices -- against half the human race -- that are considered prejudices according to any dictionary definition.
Logic! Good gracious! What rubbish! How can I tell what I think till I see what I say?
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.
Logic works, metaphysics contemplates.
Logic is the anatomy of thought.
Reason also is choice.
The fact that logic cannot satisfy us awakens an almost insatiable hunger for the irrational.
The logic of the world is prior to all truth and falsehood.
Logic takes care of itself; all we have to do is to look and see how it does it.