...I doubt not, if you but condescend to pay so much regard to this treatise as to be willing in the first place to correct it (for mindful not only of my humanity, but chiefly also of my ignorance, I do not affirm that it is free from errors); in the second place to supply what is wanting in it, to perfect what is incomplete, and to give more ample illustration where it is demanded, or at least to indicate these defects to myself that i may endeavour to remedy them;1
He starts his meditations which spans over a period of six days by sitting himself, I dare say, comfortably, by the fire side...
MEDITATION I SKEPTICAL DOUBT IN THE First Meditation, the meditator expounds the grounds on which we may doubt generally all things, and especially material objects, so long at least, as we have no other foundations for the sciences than those we have before now possessed. The meditator was struck by how many false things he had believed, and by how doubtful the structure of beliefs he had based on them. He realized that if he wanted to establish anything in the sciences that was stable and likely to last, he needed – just once – to demolish everything completely and start again from the foundations.
I can do this without showing that all my beliefs are false, which is probably more than I could ever manage. My reason tells me that as well as withholding assent from propositions that are obviously false, I should also withhold it from ones that are not completely certain and indubitable. So all I need, for the purpose of rejecting all my opinions, is to find in each of them at least some reason for doubt. I can do this without going through them one by one, which would take forever: once
1
Rene Descartes, Meditations