Read John Von Neumann biography
When we talk mathematics, we may be discussing a secondary language built on the primary language of the nervous system.

Any one who considers arithmetical methods of producing random digits is, of course, in a state of sin. For, as has been pointed out several times, there is no such thing as a random number — there are only methods to produce random numbers, and a strict arithmetic procedure of course is not such a method.
John Von NeumannThe 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 NeumannIt is just as foolish to complain that people are selfish and treacherous as it is to complain that the magnetic field does not increase unless the electric field has a curl. Both are laws of nature.
John Von NeumannYoung man, in mathematics you don't understand things. You just get used to them.
John Von NeumannThe goys have proven the following theorem…
John Von NeumannYou wake me up early in the morning to tell me that I'm right? Please wait until I'm wrong.
John Von NeumannIf one has really technically penetrated a subject, things that previously seemed in complete contrast, might be purely mathematical transformations of each other.
John Von NeumannIf people do not believe that mathematics is simple, it is only because they do not realize how complicated life is.
John Von NeumannThere probably is a God. Many things are easier to explain if there is than if there isn't.
John Von Neumann