Arthur Eddington Quote

The mind is not content to leave scientific Truth in a dry husk of mathematical symbols, and demands that it shall be alloyed with familiar images. The mathematician, who handles x so lightly, may fairly be asked to state, not indeed the inscrutable meaning of x in nature, but the meaning which x conveys to him.

Space, Time and Gravitation, Preface (p. vi), At The University Press. 1921