To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge.

Finally we shall place the Sun himself at the center of the Universe.

All is number.

-- Pythagoras

There is geometry in the humming of the strings, there is music in the spacing of the spheres.

-- Pythagoras

Music is a mathematical science that investigates how melodies are composed and their various properties.

-- Farabi

The duty of the individual is to do what he does best.

-- Robert Bosch

I did a lot of math. I made a lot of money, and I gave almost all of it away. That's the story of my life.

-- Jim Simons

An expert is a man who has made all the mistakes which can be made, in a narrow field.

-- Niels Bohr