René Descartes said this quote

“ Common sense is the most widely shared commodity in the world, for every man is convinced that he is well supplied with it. ”

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I suppose therefore that all things I see are illusions; I believe that nothing has ever existed of everything my lying memory tells me. I think I have no senses. I believe that body, shape, extension, motion, location are functions. What is there then that can be taken as true? Perhaps only this one thing, that nothing at all is certain.

~ René Descartes

René Descartes Ethics Logic Metaphysics Ontology Philosophy Psychology Science

Except our own thoughts, there is nothing absolutely in our power.

~ René Descartes

René Descartes Philosophy Self Determination Self Discipline

I desire to live in peace and to continue the life I have begun under the motto 'to live well you must live unseen

~ René Descartes

René Descartes Philosophy

although we very clearly see the sun, we ought not therefore to determine that it is only of the size which our sense of sight presents; and we may very distinctly imagine the head of a lion joined to the body of a goat, without being therefore shut up to the conclusion that a chimaera exists; for it is not a dictate of reason that what we thus see or imagine is in reality existent; but it plainly tells us that all our ideas or notions contain in them some truth.

~ René Descartes

René Descartes Philosophy