I can conceive a time when, by improved chemical science, every foul vapour which now escapes from the chimney of a manufactory, polluting the air, destroying the vegetation, shall be seized, utilised, converted into some profitable substance, till the black country shall be black no longer, the streams once more crystal clear, the trees once more luxuriant, and the desert, which man has created in his haste and greed, shall in literal fact once more blossom as the rose. And just so can I conceive a time when by a higher civilisation, formed on a political economy more truly scientific, because more truly according to the will of God, our human refuse shall be utilised like our material refuse; when man as man, down to the weakest and most ignorant, shall be found (as he really is) so valuable that it will be worth while to preserve his health, to develop his capabilities, to save him alive, body, intellect, and character, at any cost; because men will see that a man is, after all, the most precious and useful thing on the earth, and that no cost spent on the development of human beings can possibly be thrown away.

All Saints' Day Sermons. 1870.