William Stanley Jevons Quote

There may exist in nature perfect straight lines, triangles, circles, and other regular geometrical figures; to our science it is a matter of indifference whether they do or do not exist, because in any case they must be beyond our powers of perception.

The Principles of Science: A Treatise on Logic and Scientific Method, Book IV, Chapter XXI (p. 458), Macmillan & Co Ltd. 1877