Sometimes, you know, I am surprised by my expertise.
After all, only by immersing yourself in physics, you realize that the world is not what we are used to seeing it... It is different... And the most wonderful thing is that we know nothing about it...
We can only rely on our guesses about its device. How many mysteries he carries in himself.
The more we know about our world, the more we begin to understand – we know nothing.

XXX: I have an exam soon.
YYY: The afternoon...