With me, everything turns into mathematics.

A state is better governed which has few laws, and those laws strictly observed.

If we possessed a thorough knowledge of all the parts of the seed of any animal (e.g. man), we could from that alone, be reasons entirely mathematical and certain, deduce the whole conformation and figure of each of its members, and, conversely if we knew several peculiarities of this conformation, we would from those deduce the nature of its seed.

I accept no principles of physics which are not also accepted in mathematics.

How do we know that anything really exists, that anything is really the way it seems ot us through our senses?

The object of music is a Sound. The end; to delight, and move various Affections in us.

And thereby make ourselves, as it were, the lords and masters of nature.