Philosophy is the highest music.
The real tragedy of life is when men are afraid of the light.
You can't do good if you don't feel good.
All men, well interrogated, answer well.
The science [geometry] is pursued for the sake of the knowledge of what eternally exists, and not of what comes for a moment into existence, and then perishes.
Music is moral law. It is the essence of order and leads to all that is good, true and beautiful.