“Subjectivity is strange to Science, while Relativity is an objective part of it.”

“The notion of Local Inertial Frame is crucial to understanding Nature and, in particular, General Relativity. Notwithstanding, very few popular science books (not even textbooks) emphasize enough its fundamental character.”

“A good part of what appears to us - prima facie - as objective reality is, instead, just a consequence of our conventions to discover it.”

“It is worth noting that a wrong folkoric definition of an Inertial Frame in the Popular Science literature (even in text books) reads that 'it is a frame in uniform motion'. We know very well by now that the idea of motion requires a frame of reference, so that such a definition of an Inertial Frame has no meaning whatsoever, confusing the reader because it tacitly reaffirms the idea of absolute motion -- when the goal of every didactic exposition of Relativity Theory should be precisely the opposite.”

“Such is how Science makes progress: not destroying the past, but learning from it, and building on it.”

“If Relativity Theory kills our deepest convictions, why not start by finding out why we believed in them for millennia?”

“The past and the future are not a collection of instants shared by all space, but a collection of events that correspond to a possible relation of causal order with the present event.”