In ordinary life we are guided by well-founded beliefs about many things of which, strictly speaking, we do not have knowledge. Our beliefs are still well-founded in the sense that if asked, we can give reasons for them, and plausibly respond to questions about those reasons. We ought to continue to hold those beliefs, unless and until we are confronted with better reasons for a different conclusion.
Brandom would remind us that we have an implicit ethical obligation to keep our beliefs in good repair. We have a responsibility for the consequences of applying our beliefs. We have a responsibility not to hypocritically pretend to hold incompatible beliefs. In general, we have a responsibility to take our explicit and implicit commitments seriously. This entails a willingness to participate in dialogue, to explain our reasons and answer questions about them.
The Postmodern Peripatetic 