Ernst Mach Quote

For a long time the structure of the organ of hearing has actively engaged the attention of anatomists. A considerable number of brilliant discoveries has been brought to light by their labors, and a splendid array of facts and truths established. But with these facts a host of new enigmas has been presented.

Translated by Thomas Joseph McCormack, Popular Scientific Lectures (3rd edition), The Fibres of Corti (p. 17)