Famous quotes containing the words surface and/or friction:
“It was a pretty game, played on the smooth surface of the pond, a man against a loon.”
—Henry David Thoreau (1817–1862)
“We have got onto slippery ice where there is no friction and so in a certain sense the conditions are ideal, but also, just because of that, we are unable to walk. We want to walk so we need friction. Back to the rough ground!”
—Ludwig Wittgenstein (1889–1951)