Physics and Reality

I am reading a nice book by Bernard d'Espagnat about philosophy of physics. I really do not think it makes much sense to study physics without understanding how we interpret physical reality.

Here are some highlights:

"I believe that some of our most engrained notions about space and causality should be reconsidered(...) This reality is something that, while not a purely mind-made construct as radical idealism would have it, can be but the picture our mind forces us to form of ... Of what? The only answer I am able to provide is that underlying this empirical reality is a mysterious, non-conceptualizable "ultimate reality", not embedded in space and (presumably) not in time either. To put it in a nutshell, in this quest I first found that whatever way you look at it the quantum mechanical formalism, when taken at face value, compels us to consider that two particles that have once interacted always remain bound in a very strange, hardly understandable way even when they are far apart, the connection being independent of distance. Even though this connection-at-a-distance does not permit us to transmit messages, clearly it is real. In other words space, so essential in classical physics, seems to play a considerably less basic role in quantum physics.(As a result) some of our most engrained notions about space and causality should be reconsidered."