René Descartes Quotes

And, in fine, of false sciences I thought I knew the worth sufficiently to escape being deceived by the professions of an alchemist, the predictions of an astrologer, the impostures of a magician, or by the artifices and boasting of any of those who profess to know things of which they are ignorant.

Dubium sapientiae initium (Doubt is the origin of wisdom).

Divide each difficulty into as many parts as is feasible and necessary to resolve it.

I was thus led to infer that the ground of our opinions is far more custom and example than any certain knowledge.

Zira bilimlerin hepsi insan bilgeliğinden (humana sapientia) başka bir şey değildir ve nasıl ki şeylerin çeşit çeşit olması, onları aydınlatan güneşin doğasında bir fark yaratmıyorsa, akıl da ne kadar farklı konuyla ilgilenirse ilgilensin hep bir ve aynı kalır. Dolayısıyla insan aklının herhangi bir sınırlamaya ihtiyacı yoktur. Bir doğrunun bilinmesi, bir sanatı edinmenin bir diğerini edinmeyi engellemesi gibi değildir; başka bir doğrunun bilinmesine engel olmasının aksine bu konuda bize yardımcı bile olur.

Mr. Clerselier has written me that you are expecting from him my Meditations... in order to present them to the queen of the land. ...If I had only been as wise as they say the savages persuaded themselves that the monkeys were, I never would have become known as a maker of books: Since it is said that they imagined that the monkeys could indeed speak, if they wanted to, but that they chose not to so lest they be forced to work. And since I had not the same prudence to abstain from writing, I now have neither as much liesure nor as much peace as I would have had if I had kept quiet. But since the mistake has already been made, and since I am now known by an infinity of people at the academy, who look askance at my writings and scour them for means of harming me, I do have great hope of being known to persons of great merit, whose power and virtue could protect me.

it appears to me that I have discovered many truths more useful and more important than all I had before learned, or even had expected to learn.

philosophes qui ont pu autrefois se soustraire de l'empire de la fortune, et, malgré les douleurs et la pauvreté, disputer de la félicité avec leurs dieux. Car s'occupant sans cesse à considérer les bornes qui leur étaient prescrites par la nature, ils se persuadaient si parfaitement que rien n'était en leur pouvoir que leurs pensées, que cela seul était suffisant pour les empêcher d'avoir aucune affection pour d'autres choses; et ils disposaient d'elles si absolument qu'ils avaient en cela quelque raison de s'estimer plus riches, et plus puissants, et plus libres, et plus heureux qu'aucun des autres hommes, qui, n'ayant point cette philosophie, tant favorisés de la nature et de la fortune qu'ils puissent être, ne disposent jamais ainsi de tout ce qu'ils veulent. (partie 3, para 4)

It is not enough to have a good mind; the main thing is to use it well.

I resolv’d to faign, that all those things which ever entred into my Minde, were no more true, then the illusions of my dreams.

Το σώμα και η ψυχή, παρότι διακριτά και ασύμβατα από μεταφυσική άποψη, αλληλεπιδρούν.

Just as faith teaches us that the sovereign felicity of the other life consists in the contemplation of the divine majesty alone, so even now we can learn from experience that a similar meditation, although incomparably less perfect, allows us to enjoy the greatest happiness we are capable of feeling in this life.

Whenever enyone has offended me, I try to raise my soul so high that the offense cannot reach it.

. . .it is not my design to teach the method that everyone must follow in order to use his reason properly, but only to show the way in which I have tried to use my own.

M. Desargues puts me under obligations on account of the pains that it has pleased him to have in me, in that he shows that he is sorry that I do not wish to study more in geometry, but I have resolved to quit only abstract geometry, that is to say, the consideration of questions which serve only to exercise the mind, and this, in order to study another kind of geometry, which has for its object the explanation of the phenomena of nature... You know that all my physics is nothing else than geometry.