If the desires are low placed, if they extend to little beyond physical comfort, and the show of riches, the immediate results of the energy will not be much more than the continual extension of man's power over material objects
 John Stuart Mill, Considerations on Representative Government (1861). copy citation

Context

“The people who think it a shame when any thing goes wrong—who rush to the conclusion that the evil could and ought to have been prevented, are those who, in the long run, do most to make the world better. If the desires are low placed, if they extend to little beyond physical comfort, and the show of riches, the immediate results of the energy will not be much more than the continual extension of man's power over material objects; but even this makes room, and prepares the mechanical appliances for the greatest intellectual and social achievements; and while the energy is there, some persons will apply it, and it will be applied more and more, to the perfecting, not of outward circumstances alone, but of man's inward nature.” source