  Rather unusual in scholastic production, the Summa by Henry does not open with a direct treatment of God, but with a lengthy analysis of the problem of human knowledge, beginning with the sceptic's question par excellence: can man know anything at all (art. 1, q. 1)? Henry refuses to pursue in depth Augustine's radical theory in q. 9 of De diversis quaestionibus 83 that we should not expect sincera veritas from the senses. As generally agreed after the rediscovery of Aristotle's works by the Latin West, since all knowledge originates in the senses, denying any value whatsoever to sensation would mean denying all possibility of knowledge in general. Taking knowledge (scire: to know) in its most generic sense, for Henry it is undeniable that man knows something; Augustine's reservations should be taken to refer to those who claim that judgment is co-extensive with sensation. If we distinguish sensorial apprehension from the intellect's judgment of it, then it is perfectly legitimate to expect truth (or a certain kind of truth) from the senses.