Inference and reasoning. Whether any judgment can be absolutely certain. Degrees of belief. Descartes' "Cogito ergo sum." A digression on the failure of people of wealth to support the science of reasoning.
Belief, Certainty, Descartes Ren» ., Inference, Judgment, Logic (modal see Modality), Reasoning (probable see also Probability)
pp. 1-18, 20 (possibly of another draft)