The pleasure we obtain from music comes from counting, but counting unconsciously. Music is nothing but unconscious arithmetic.

I am convinced that the unwritten knowledge scattered among men of different callings surpasses in quantity and in importance anything we find in books, and that the greater part of our wealth has yet to be recorded.

Nature does not make leaps.

He who understands Archimedes and Apollonius will admire less the achievements of the foremost men of later times.

One cannot explain words without making incursions into the sciences themselves, as is evident from dictionaries; and, conversely, one cannot present a science without at the same time defining its terms.

Take what you need, do what you should, you will get what you want.

I don't say that bodies like flint, which are commonly called inanimate, have perceptions and appetition; rather they have something of that sort in them, as worms are in cheese.