sentences:  Influenced by L.E.J Brouwer and verificationism in part, Wittgenstein (April 1889 Vienna - April 1951 Cambridge, England ), made an impassioned attack upon axiomatic set theory, and upon the idea of the actual infinite, during his "middle period".Unlike the traditional empiricists, he thought that the infinite was in some way given to sense experience.The philosopher Emmanuel Levinas ( January 1906, Lithuania - December 25 1995, Paris  ) uses infinity to designate that which cannot be defined or reduced to knowledge or power.