A Quote by Leonhard Euler
Logic is the foundation of the certainty of all the knowledge we acquire.
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Shamanism is a path of knowledge, not of faith, and that knowledge cannot come from me or anyone else in this reality. To acquire that knowledge, including the knowledge of the reality of the spirits, it is necessary to step through the shaman's doorway and acquire empirical evidence.
Where the quest for knowledge is relatively, and now almost absolutely, unrestrained, the public benefit will be great, especially where the certainty of the law ensures that knowledge is rewarded. This is exactly the combination that is the foundation of wealth-creation.
Because of its concrete content, sense-certainty immediately appears as the richest kind of knowledge, indeed a knowledge of infinite wealth for which no bounds can be found, either when we reach out into space and time in which it is dispersed, or when we take a bit of this wealth, and by division enter into it. Moreover, sense-certainty appears to be the truest knowledge ... but, in the event, this very certainty proves itself to be the most abstract and poorest truth. All that it says about what it knows is just that it is; and its truth contains nothing but the sheer being of the thing.
If your knowledge of fire has been turned to certainty by words alone, then seek to be cooked by the fire itself. Don't abide in borrowed certainty. There is no real certainty until you burn; if you wish for this, sit down in the fire.
While the dogmatist is harmful, the sceptic is useless ...; one is certain of knowing, the other of not knowing. What philosophy should dissipate is certainty, whether of knowledge or of ignorance. Knowledge is not so precise a concept as is commonly thought. Instead of saying 'I know this', we ought to say 'I more or less know something more or less like this'. ... Knowledge in practical affairs has not the certainty or the precision of arithmetic.
Arithmetic is where the content lies, and not logic; but logic prompts certainty, and not arithmetic.
The language of judicial decision is mainly the language of logic. And the logical method and form flatter that longing for certainty and for repose which is in every human mind. But certainty generally is illusion, and repose is not the destiny of man.
One can acquire certainty only by amputating inquiry.
I am convinced that it is impossible to expound the methods of induction in a sound manner, without resting them upon the theory of probability. Perfect knowledge alone can give certainty, and in nature perfect knowledge would be infinite knowledge, which is clearly beyond our capacities. We have, therefore, to content ourselves with partial knowledge - knowledge mingled with ignorance, producing doubt.
Knowledge cannot be separated from a certain way of life which becomes its living manifestation. To acquire mystical knowledge means to undergo a transformation; one could even say that the knowledge is the transformation.
There is no knowledge so hard to acquire as the knowledge of how to live this life well and naturally.
No thief, however skillful, can rob one of knowledge, and that is why knowledge is the best and safest treasure to acquire.
To acquire knowledge, one must study; but to acquire wisdom, one must observe.
You cannot be wise without some basis of knowledge, but you may easily acquire knowledge and remain bare of wisdom.
The very foundation of science is to keep the door open to doubt. Precisely because we keep questioning everything, especially our own premises, we are always ready to improve our knowledge. Therefore a good scientist is never ‘certain’. Lack of certainty is precisely what makes conclusions more reliable than the conclusions of those who are certain: because the good scientist will be ready to shift to a different point of view if better elements of evidence, or novel arguments emerge. Therefore certainty is not only something of no use, but is in fact damaging, if we value reliability.
Through logic and inference we can prove anything. Therefore, logic and inference, in contrast to ordinary daily living experience, are secondary instruments of knowledge. Probably tertiary.
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