To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it

To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it

To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it

To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it

To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it

To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it