The greatest treasure that God can give his creatures is and ever will be—genuine existence". If these words of Herder be true, cultivation is the key to the most precious of treasures; for as Nature has insured the permanence of existence by implanting in us a force of resistance and self-renovation, so may we, on our side, increase the force of these attributes by self-acquired powers of mind.
— ERNST, BARON VON FEUCHTERSLEBEN