Although nature commences with reason and ends in experience it is necessary for us to do the opposite, that is to commence with experience and from this to proceed to investigate the reason.

Human subtlety will never devise an invention more beautiful, more simple or more direct than does nature because in her inventions nothing is lacking, and nothing is superfluous.

Nature never breaks her own laws.

The smallest feline is a masterpiece.

Experience does not err. Only your judgments err by expecting from her what is not in her power.