Rene Descartes

Rene Descartes
René Descarteswas a French philosopher, mathematician, and scientist. Dubbed the father of modern western philosophy, much of subsequent Western philosophy is a response to his writings, which are studied closely to this day. He spent about 20 years of his life in the Dutch Republic...
ProfessionPhilosopher
Date of Birth31 March 1596
CityIndre-et-Loire, France
Rene Descartes quotes about
rocks doubt sake
I did not imitate the skeptics who doubt only for doubting's sake, and pretend to be always undecided; on the contrary, my whole intention was to arrive at a certainty, and to dig away the drift and the sand until I reached the rock or the clay beneath.
dream sleep waking
But I cannot forget that, at other times I have been deceived in sleep by similar illusions; and, attentively considering those cases, I perceive so clearly that there exist no certain marks by which the state of waking can ever be distinguished from sleep, that I feel greatly astonished; and in amazement I almost persuade myself that I am now dreaming.
knows
The only thing that I know, is that I know nothing
way seems senses
How do we know that anything really exists, that anything is really the way it seems ot us through our senses?
expectations might enough
Archimedes, that he might transport the entire globe ... demanded only a point that was firm and immovable; so also, I shall be entitled to entertain the highest expectations, if I am fortunate enough to discover only one thing that is certain and indubitable.
dream ideas mind
Even if I were to suppose that I was dreaming and whatever I saw or imagined was false, yet I could not deny that ideas were truly in my mind.
differences mind body
There is a great difference between mind and body insomuch as body is by nature always divisible, and the mind is entirely indivisible.
dream vivid latter
For how do we know that the thoughts which occur in dreaming are false rather than those others which we experience when awake, since the former are often not less vivid and distinct than the latter?
dream perception right-now
It is possible that I am dreaming right now and that all of my perceptions are false.
eye order mind
The entire method consists in the order and arrangement of the things to which the mind's eye must turn so that we can discover some truth.
memories lying believe
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.
philosophy science practicals
Science is practical philosophy.
perseverance water veins
It must not be thought that it is ever possible to reach the interior earth by any perseverance in mining: both because the exterior earth is too thick, in comparison with human strength; and especially because of the intermediate waters, which would gush forth with greater impetus, the deeper the place in which their veins were first opened; and which would drown all miners.
lying risk curiosity
So blind is the curiosity by which mortals are possessed, that they often conduct their minds along unexplored routes, having no reason to hope for success, but merely being willing to risk the experiment of finding whether the truth they seek lies there.