From Blaise Pascal:
When everything is moving at once, nothing appears to be moving, as on board ship. When everyone is moving towards depravity, no one seems to be moving, but if someone stops, he shows up the others who are rushing on by acting as a fixed point.
Pascal, Pensees, ed. Alban Krailsheimer (New York: Penguin, 1966), 699/382, p. 247
