| http://www.w3.org/ns/prov#value | - As examples of things of which we are absolutely certain, although we might find it hard to justify our certainty: ???We are sure beyond all hazard of a mistake, that our own self is not the only being existing; that there is an external world; that it is a system with parts and a whole, a universe carried on by laws; and that the future is affected by the past.
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