The exact sciences also start from the assumption that in the end it will always be possible to understand nature, even in every new field of experience, but that we may make no a priori assumptions about the meaning of the word understand.
Werner HeisenbergNatural science, does not simply describe and explain nature; it is part of the interplay between nature and ourselves
Werner HeisenbergI think that the discovery of antimatter was perhaps the biggest jump of all the big jumps in physics in our century.
Werner Heisenberg