"Truth, says instrumentalism, is what works out, that which does what you expect it to do. The judgment is true when you can "bank" on it and not be disappointed. If, when you predict, or when you follow the lead of your idea or plan, it brings you to the ends sought for in the beginning, your judgment is true. It does not consist in agreement of ideas, or the agreement of ideas with an outside reality; neither is it an eternal something which always is, but it is a name given to ways of thinking which get the thinker where he started. As a railroad ticket is a "true" one when it lands the passenger at the station he sought, so is an idea "true," not when it agrees with something outside, but when it gets the thinker successfully to the end of his intellectual journey.