Scale Biogas Plants

Famous quotes containing the words scale and/or plants:

“How many women does one need to sing the scale of love all the way up and down?”
—Georg Büchner (1813–1837)

“Probably if our lives were more conformed to nature, we should not need to defend ourselves against her heats and colds, but find her our constant nurse and friend, as do plants and quadrupeds.”
—Henry David Thoreau (1817–1862)