Those variables

We observe then the immense benefit that natural light produces on the human body. The light of the day every time wonderful as it was that morning in which we walked while instructing us of the most diverse of things brother Othon. We then talked about all things and so the human being, the sapiens perceive the world in color, so that this (color), is one of those variables that we could well add to the 4 matrices of Euclid are these: music , Arithmetic, geometry and astronomy.