I will say to you what the scientists say about the small particles in the universe: I can't show you where they are, I can only show you where they were.

. . .a scientific theory is just a mathematical model we make to describe our observations: it exists only in our minds. So it is meaningless to ask: which is real, "real" or "imaginary" time? It is simply a matter of which is the more useful description.

Scientific theories are tested every time someone makes an observation or conducts an experiment, so it is misleading to think of science as an edifice, built on foundations. Rather, scientific knowledge is more like a web. The difference couldn’t be more crucial. A tall edifice can collapse – if the foundations upon which it was built turn out to be shaky. But a web can be torn in several parts without causing the collapse of the whole. The damaged threads can be patiently replaced and re-connected with the rest – and the whole web can become stronger, and more intricate.

But he is an Italian," was Umberto's sensible reply. "He doesn't care if you break some law a little bit, as long as you wear beautiful shoes. Are you wearing beautiful shoes? Are you wearing the shoes I gave you?...principessa?"
I looked down at my flip-flops. "I guess I'm toast.

Everything has a shadow-side. In my opinion, that is what makes life interesting.

He always says that those who control the present can rewrite the past.