Ground Level Ozone

Famous quotes containing the words ground and/or level:

“To say that authority, whether secular or religious, supplies no ground for morality is not to deny the obvious fact that it supplies a sanction.”
—A.J. (Alfred Jules)

“The truth is, that common-sense, or thought as it first emerges above the level of the narrowly practical, is deeply imbued with that bad logical quality to which the epithet metaphysical is commonly applied; and nothing can clear it up but a severe course of logic.”
—Charles Sanders Peirce (1839–1914)