Theoretically, I grant you, there is no possibility of error in necessary reasoning. But to speak thus "theoretically," is to uselanguage in… — Charles Sanders Peirce Copy Share Image
If man were immortal he could be perfectly sure of seeing the day when everything in which he had trusted should betray… — Charles Sanders Peirce Copy Share Image
Some think to avoid the influence of metaphysical errors, by paying no attention to metaphysics; but experience shows that these men beyond… — Charles Sanders Peirce Copy Share Image
Unless man have a natural bent in accordance with nature's, he has no chance of understanding nature at all. — Charles Sanders Peirce Copy Share Image
It has never been in my power to study anything, mathematics, ethics, metaphysics, gravitation, thermodynamics, optics, chemistry, comparative anatomy, astronomy, psychology, phonetics,… — Charles Sanders Peirce Copy Share Image
No general description of the mode of advance of human knowledge can be just which leaves out of account the social aspect… — Charles Sanders Peirce Copy Share Image
Whenever a man acts purposively, he acts under a belief in some experimental phenomenon. Consequently, the sum of the experimental phenomena that… — Charles Sanders Peirce Copy Share Image
It is impossible not to envy the man who can dismiss reason, although we know how it must turn out at last. — Charles Sanders Peirce Copy Share Image
For example, there are numbers of chemists who occupy themselves exclusively with the study of dyestuffs. They discover facts that are useful… — Charles Sanders Peirce Copy Share Image
It has often been argued that absolute scepticism is self-contradictory; but this is a mistake: and even if it were not so,… — Charles Sanders Peirce Copy Share Image
The third class consists of men to whom nothing seems great but reason. If force interests them, it is not in its… — Charles Sanders Peirce Copy Share Image
If man were immortal he could be perfectly sure of seeing the day when everything in which he had trusted should betray… — Charles Sanders Peirce Copy Share Image
The a priori method is distinguished for its comfortable conclusions. It is the nature of the process to adopt whatever belief weare… — Charles Sanders Peirce Copy Share Image
[For] men to whom nothing seems great but reason ... nature ... is a cosmos, so admirable, that to penetrate to its… — Charles Sanders Peirce Copy Share Image
It is terrible to see how a single unclear idea, a single formula without meaning, lurking in a young man's head, will… — Charles Sanders Peirce Copy Share Image
True science is distinctively the study of useless things. For the useful things will get studied without the aid of scientific men.… — Charles Sanders Peirce Copy Share Image
Every man is fully satisfied that there is such a thing as truth, or he would not ask any question. — Charles Sanders Peirce Copy Share Image
It is not knowing, but the love of learning, that characterizes the scientific man. — Charles Sanders Peirce Copy Share Image
If we are to define science, ... it does not consist so much in knowing, nor even in "organized knowledge," as it does in… — Charles Sanders Peirce Copy Share Image
It will sometimes strike a scientific man that the philosophers have been less intent on finding out what the facts are, than on inquiring… — Charles Sanders Peirce Copy Share Image
One will meet, for example, the virtual assumption that what is relative to thought cannot be real. But why not, exactly? Red is relative… — Charles Sanders Peirce Copy Share Image
Generality is, indeed, an indispensable ingredient of reality; for mere individual existence or actuality without any regularity whatever is a nullity. Chaos is pure… — Charles Sanders Peirce Copy Share Image
... and it is probably that there is some secret here which remains to be discovered. — Charles Sanders Peirce Copy Share Image
Our whole past experience is continually in our consciousness, though most of it sunk to a great depth of dimness. I think of consciousness… — Charles Sanders Peirce Copy Share Image
Theoretically, I grant you, there is no possibility of error in necessary reasoning. But to speak thus "theoretically," is to uselanguage in a Pickwickian… — Charles Sanders Peirce Copy Share Image
Looking out of my window this lovely spring morning I see an azalea in full bloom. No, no! I do not see that; though… — Charles Sanders Peirce Copy Share Image
Fate then is that necessity by which a certain result will surely be brought to pass according to the natural course of events however… — Charles Sanders Peirce Copy Share Image
If man were immortal he could be perfectly sure of seeing the day when everything in which he had trusted should betray his trust,… — Charles Sanders Peirce Copy Share Image
Some think to avoid the influence of metaphysical errors, by paying no attention to metaphysics; but experience shows that these men beyond all others… — Charles Sanders Peirce Copy Share Image
The percept is the reality. It is not in propositional form. But the most immediate judgment concerning it is abstract. It is therefore essentially… — Charles Sanders Peirce Copy Share Image
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