Και όπως ένας σκλάβος, που απολάμβανε στον ύπνο του μια φανταστική ελευθερία, μόλις αρχίσει να υποπτεύεται ότι ονειρεύεται, φοβάται μην ξυπνήσει και … - René Descartes

To know what people really think, pay regard to what they do, rather than what they say.

ART. 17. The functions of the soul Having thus considered all the functions that pertain to the body alone, it is easy to recognize that there remains nothing in us that we should ascribe to the soul except our thoughts, of which there are two main kinds: the actions of the soul and its passions. By its actions I mean all our volitions, since we experience these as coming directly from our soul, and as apparently depending on it alone. Whereas, on the other hand, the term ‘passions’ can be applied in general to all the kinds of perception or knowledge to be found within us, because it is often not our soul that makes them what they are, and because they are always produced in us by the things they represent.

At last I will devote myself sincerely and without reservation to the general demolition of my opinions.