René Descartes Quotes

This result could have been achieved either by his [God] endowing my intellect with a clear and distinct perception of everything about which I would ever deliberate, or simply by impressing the following rule so firmly upon my memory that I could never forget it: I should never judge anything that I do not clearly and distinctly understand.

those people who formerly had been half wilde, and civiliz’d but by degrees, made their laws but according to the incommodities which their crimes and their quarrels constrain’d them to, could not be so wel pollic’d, as those who from the beginning of their association, observ’d the constitutions of some prudent Legislator.

i manifestly understand that there is more reality in infinite than in finite substance, and that therefore the perception of the infinite in me must be in some way prior to that of the finite: the perception of god, in other words, prior to that of myself. for how could i possibly understand that i doubt, and that i desire, that is, that there is something lacking in me, and that i am not completely perfect, if there were no idea in me of a more perfect being, by comparison with which i could recognize my own shortcomings?

Certainly no one can deny that we have such an idea of God in ourselves unless they think that there is no knowledge at all of God in human minds.

No doubt you know that Galileo had been convicted not long ago by the Inquisition, and that his opinion on the movement of the Earth had been condemned as heresy. Now I will tell you that all things I explain in my treatise, among which is also that same opinion about the movement of the Earth, all depend on one another, and are based upon certain evident truths. Nevertheless, I will not for the world stand up against the authority of the Church. ...I have the desire to live in peace and to continue on the road on which I have started.

For there is hardly any question in the sciences about which clever men have not frequently disagreed. But whenever two persons make opposite judgements about the same thing, it is certain that at least one of them is mistaken, and neither, it seems, has knowledge. For if the reasoning of one of them were certain and evident, he would be able to lay it before the other in such a way as eventually to convince his intellect as well.

To live without philosophizing is in truth the same as keeping the eyes closed without attempting to open them.

Je donnerais tout ce que je sais pour la moitié de ce que je ne sais pas.

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.

Those who reason most powerfully and are the most successful at ordering their thoughts so as to make them clear and intelligible will always be best able to persuade others of what they say, even if they speak in the thickest of dialects

Each problem that I solved became a rule which served afterwards to solve other problems

You just keep pushing. You just keep pushing. I made every mistake that could be made. But I just kept pushing.

hay pocas personas que consientan en decir lo que creen, sino también porque muchas lo ignoran, pues el acto del pensamiento, por el cual uno cree una cosa, es diferente de aquel otro por el cual uno conoce que la cree,

Γιατί επανέρχονται στη σκέψη μου αυτές οι συνηθισμένες απόψεις και κατακτούν την πίστη μου, σαν να τους δίνει το δικαίωμα η μακροχρόνια εξοικείωση μαζί μου να κυριεύσουν το πνέυμα μου, ακόμα και σχεδόν ενάντια στη θέληση μου

the more uncommon often only mislead us so long as the causes of the more ordinary are still unknown;