René Descartes: Well

René Descartes was French philosopher, mathematician, and scientist. Explore interesting quotes on well.
René Descartes: 94 quotes43 likes

“It is not enough to have a good mind. The main thing is to use it well.”

René Descartes

Variant: It is not enough to have a good mind; the main thing is to use it well.
Source: Discourse on Method

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

René Descartes

“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

Source: The Principles of Philosophy

“He who hid well, lived well.”

René Descartes

“Thus, all unknown quantities can be expressed in terms of a single quantity, whenever the problem can be constructed by means of circles and straight lines, or by conic sections, or even by some other curve of degree not greater than the third or fourth.
But I shall not stop to explain this in more detail, because I should deprive you of the pleasure of mastering it yourself, as well as of the advantage of training your mind by working over it, which is in my opinion the principal benefit to be derived from this science. Because, I find nothing here so difficult that it cannot be worked out by anyone at all familiar with ordinary geometry and with algebra, who will consider carefully all that is set forth in this treatise.”

René Descartes book La Géométrie

First Book
La Géométrie (1637)