William James - Truth Quotes

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We have to live today by what truth we can get today and be ready tomorrow to call it falsehood.

William James
Pragmatism asks its usual question. "Grant an idea or belief to be true," it says, "what concrete difference will its being true make in anyone's actual life? How will the truth be realized? What experiences will be different from those which would obtain if the belief were false? What, in short, is the truth's cash-value in experiential terms?

William James
The necessity of faith as an ingredient in our mental attitude is strongly insisted on by the scientific philosophers of the present day; but by a singularly arbitrary caprice they say that it is only legitimate when used in the interests of one particular proposition, — the proposition, namely, that the course of nature is uniform. That nature will follow tomorrow the same laws that she follows today is, they all admit, a truth which no man can know; but in the interests of cognition as well as of action we must postulate or assume it.

William James
The truth remains that, after adolescence has begun, "words, words, words," must constitute a large part, and an always larger part as life advances, of what the human being has to learn.

William James
Is dogmatic or scholastic theology less doubted in point of fact for claiming, as it does, to be in point of right undoubtable? And if not, what command over truth would this kind of theology really lose if, instead of absolute certainty, she only claimed reasonable probability for her conclusions? If we claim only reasonable probability, it will be as much as men who love the truth can ever at any given moment hope to have within their grasp. Pretty surely it will be more than we could have had, if we were unconscious of our liability to err.

William James