"Politics is for the present, but an equation is something for eternity." (Albert Einstein)

"The best way to predict future is to invent it." (Alan Kay)

"The sciences do not try to explain, they hardly even try to interpret, they mainly make models.  By a model is meant a mathematical construct which, with the addition of certain verbal interpretations, describes observed phenomena.  The justification of such a mathematical construct is solely and precisely that it is expected to work." (John von Neumann)