Bad reasoning as well as good reasoning is possible; and this fact is the foundation of the practical side of logic.
More Quotes from Charles Sanders Peirce:
The pragmatist knows that doubt is an art which hs to be acquired with difficulty.Charles Sanders Peirce
The idea does not belong to the soul it is the soul that belongs to the idea.
Charles Sanders Peirce
The final upshot of thinking is the exercise of volition, and of this thought no longer forms a part; but belief is only a stadium of mental action, an effect upon our nature due to thought, which will influence future thinking.
Charles Sanders Peirce
If man were immortal he could be perfectly sure of seeing the day when everything in which he had trusted should betray his trust, and, in short, of coming eventually to hopeless misery. He would break down, at last, as every good fortune, as every dynasty, as every civilization does. In place of this we have death.
Charles Sanders Peirce
...mathematics is distinguished from all other sciences except only ethics, in standing in no need of ethics. Every other science, even logic, especially in its early stages, is in danger of evaporating into airy nothingness, degenerating, as the Germans say, into an arachnoid film, spun from the stuff that dreams are made of. There is no such danger for pure mathematics for that is precisely what mathematics ought to be.
Charles Sanders Peirce
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The attitude is we live and let live. This is actually an amazing change in values in a rather short time and it's an example of freedom from religion.
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