Nature allows only experimental situations to occur which can be described within the framework of the formalism of quantum mechanics

I think that modern physics has definitely decided in favor of Plato. In fact the smallest units of matter are not physical objects in the ordinary sense; they are forms, ideas which can be expressed unambiguously only in mathematical language.

Natural science, does not simply describe and explain nature; it is part of the interplay between nature and ourselves

The positivists have a simple solution: the world must be divided into that which we can say clearly and the rest, which we had better pass over in silence. But can anyone conceive of a more pointless philosophy, seeing that what we can say clearly amounts to next to nothing? If we omitted all that is unclear, we would probably be left completely uninteresting and trivial tautologies.

Looking at something changes it.

The violent reaction on the recent development of modern physics can only be understood when one realises that here the foundations of physics have started moving; and that this motion has caused the feeling that the ground would be cut from science

I think that the discovery of antimatter was perhaps the biggest jump of all the big jumps in physics in our century.