I had always a most earnest desire to know how to distinguish the true from the false, in order that I might be able clearly to discriminate the righ… - René Descartes

Finally, if there be still persons who are not sufficiently persuaded of the existence of God and of the soul, by the reasons I have adduced, I am desirous that they should know that all the other propositions, of the truth of which they deem themselves perhaps more assured, as that we have a body, and that there exist stars and an earth, and such like, are less certain;

Let whoever can do so deceive me, he will never bring it about that I am nothing, so long as I continue to think I am something.

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