Herbert Spencer,
The Data of Ethics
“ As in narrower cases so in this widest case, they become so pre-occupied with the means by which an end is achieved, as eventually to mistake it for the end. Just as money, which is the means of satisfying wants, comes to be regarded by a miser as the sole thing to be worked for, leaving the wants unsatisfied; so the conduct men have found preferable because most conducive to happiness has come to be thought of as intrinsically preferable, not only to be made a proximate end (which it should be) , but to be made an ultimate end, to the exclusion of the true ultimate end. ”
