William James, Pragmatism: A New Name for Some Old Ways of Thinking
“ The truth of an idea is not a stagnant property inherent in it. Truth HAPPENS to an idea. It BECOMES true, is MADE true by events. Its verity is in fact an event, a process: the process namely of its verifying itself, its veri-FICATION. Its validity is the process of its valid-ATION. But what do the words verification and validation themselves pragmatically mean? ”
