Principle never forgives and its logic is to kill.
You can only find truth with logic if you have already found truth without it.
In the end, we are all the sum total of our actions. Character cannot be counterfeited, nor can it be put on and cast off as if it were a garment to meet the whim of the moment. Like the markings on wood which are ingrained in the very heart of the tree, character requires time and nurture for growth and development. Thus also, day by day, we write our own destiny; for inexorably we become what we do. This I believe, is the supreme logic and the law of life.
A treaty, in the minds of our people, is an eternal word. Events often make it seem expedient to depart from the pledged word, but we are conscious that the first departure creates a logic for the second departure, until there is nothing left of the word.
He who recognizes no higher logic than that of the shilling may become a very rich man, and yet remain a very poor creature, for riches are no proof of moral worth, and their glitter often serves only to draw attention to the worthlessness of their possessor, as the glowworm's light reveals the grub.
A land ethic for tomorrow should be as honest as Thoreau's Walden, and as comprehensive as the sensitive science of ecology. It should stress the oneness of our resources and the live-and-help-live logic of the great chain of life. If, in our haste to "progress," the economics of ecology are disregarded by citizens and policy makers alike, the result will be an ugly America.
Experience is more forceful than logic.
The humorous man recognizes that absolute purity, absolute justice, absolute logic and perfection are beyond human achievement and that men have been able to live happily for thousands of years in a state of genial frailty.
Humor (is) something that thrives between man's aspirations and his limitations. There is more logic in humor than in anything else. Because, you see, humor is truth.
Logic is the art of making truth prevail.
Man has such a predilection for systems and abstract deductions that he is ready to distort the truth intentionally, he is ready to deny the evidence of his senses only to justify his logic.
Prejudices are rarely overcome by argument; not being founded in reason they cannot be destroyed by logic.
Most mistakes in philosophy and logic occur because the human mind is apt to take the symbol for the reality.
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 is the art of thinking well: the mind, like the body, requires to be trained before it can use its power in the most advantageous way.
Radicalism is but the desperation of logic.
Capitalism inevitably and by virtue of the very logic of its civilization creates, educates and subsidizes a vested interest in social unrest.
Languages are spiritual organisms, vital works of art, each of them having its measure of creative power, splendor, depth, logic to explore and to construct the world of nature in life.
A mind all logic is like a knife all blade. It makes the hand bleed that uses it.
Things are distinct not in their essence but in their appearance; in other words, in their relation to one to whom they appear. This is art, the truth of which is not in substance or logic, but in expression. Abstract truth may belong to science and metaphysics, but the world of reality belongs to art.