Thoreau on improvements

“What sort of cultivation, or civilization and improvement, is ours to boast of, if it turns out that, as in this instance, unhandselled nature is worth more even by our modes of valuation than our improvements are,—if we leave the land poorer than we found it?
Is it good economy, to try it by the lowest standards, to cut down all our forests, if a forest will pay into the town treasury a greater tax than the farms which may supplant it,— if the oaks by steadily growing according to their nature leave our improvements in the rear?”

— Henry David Thoreau