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René Descartes

1596 – 1650. French philosopher, mathematician, theorist of mechanics, physicist and physiologist, creator of analytical geometry and modern algebraic symbols. The author of a coordinate system. Came up with the idea of numbering rows and seats in the theater. Doubted, thought, existed.


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

2. I doubt, therefore I think; I think, therefore I exist.

3. Define words correctly, and you will free the world from half of misunderstandings.

4. In order to improve the mind, we ought less to learn, more to contemplate.

5. The reading of all good books is like a conversation with the finest minds of past centuries.

6. Despair is fear without hope.

7. A curious mind looks for curiosities only to be surprised; an inquisitive mind looks for curiosities to get to know them and stop being surprised.

8. The mind is a burning lens that, while igniting object, stays itself cold.

9. It is better not to endeavor finding any truths than to do it without any method.

10. The goal of scientific studies should be to direct the mind in such a way that it makes solid and veracious judgments about all objects encountered.