In Philosophical Investigations, philosopher Ludwig Wittgenstein argued that the concept "game" could not be contained by any single definition, but that Best Payout Casinos must be looked at as a series of definitions that share a "family resemblance" to one another. Games were important to Wittgenstein's later thought; he held that language was itself a game, consisting of tokens governed by mutually agreed upon rules that governed the usage of words.