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
doubt philosophy therefore
Dubito ergo cogito; cogito ergo sum.(I doubt, therefore I think; I think therefore I am)
best common habit hardest matters satisfy thinks
Common sense is the best distributed thing in the world, for everyone thinks he is so well-endowed with it that even those who are hardest to satisfy in all other matters are not in the habit of desiring more of it than they already have
determine follow ought power probable
When it is not in our power to determine what it true, we ought to follow what is most probable
desire fairly good hardest respect satisfy thinks
Of all things, good sense is the most fairly distributed: everyone thinks he is so well supplied with it that even those who are the hardest to satisfy in every other respect never desire more of it than they already have.
strange
There is nothing so strange or so unbelievable that it has not been said by one philosopher or another
books books-and-reading conversation finest good men past reading
The reading of all good books is like conversation with the finest men of past centuries.
desire difficult equally everybody good matters please senses thinks
Good sense is of all things in the world the most equally distributed, for everybody thinks he is so well supplied with it, that even those most difficult to please in all other matters never desire more of it than they already possess.
among desire difficult equally good himself larger provided satisfy thinks
Good sense is, of all things among men, the most equally distributed; for everyone thinks himself so abundantly provided with it, that those even that those who are the most difficult to satisfy in everything else, do not usually desire a larger meas
follow ought power
When it is not in our power to follow what is true, we ought to follow what is most probable.
cannot conceive philosophy strange
One cannot conceive anything so strange and so implausible that it has not already been said by one philosopher or another.
complete confidence prudent
It is only prudent never to place complete confidence in that by which we have even once been deceived.
achieving difficult easy enter gave human imagine matters mind occasion reasoning simple
The long concatenations of simple and easy reasoning which geometricians use in achieving their most difficult demonstrations gave me occasion to imagine that all matters which may enter the human mind were interrelated in the same fashion.
book reading men
The reading of all good books is indeed like a conversation with the noblest men of past centuries who were the authors of them, nay a carefully studied conversation, in which they reveal to us none but the best of their thoughts.
writing discovery rainbow
The rainbow is such a remarkable phenomenon of nature, and its cause has been so meticulously sought after by inquiring minds throughout the ages, that I could not choose a more appropriate subject for demonstrating how, with the method I am using, we can arrive at knowledge not possessed at all by those whose writings are available to us.