One can never lose one's footing, or come into collision with facts, if one always keeps in view the path by which one has come.


History and Root of the Principle of the Conservation of Energy, Chapter I (p. 17), The Open Court Publishing Company. 1911

Ernst Mach Quotes

One can never lose one's footing, or come into collision with facts, if one always keeps in view the path by which one has come.

One can never lose one's footing, or come into collision with facts, if one always keeps in view the path by which one has come.

One can never lose one's footing, or come into collision with facts, if one always keeps in view the path by which one has come.

One can never lose one's footing, or come into collision with facts, if one always keeps in view the path by which one has come.