Famous quotes containing the words sphere and/or wall:
“Thought dissolves the material universe by carrying the mind up into a sphere where all is plastic.”
—Ralph Waldo Emerson (1803–1882)
“What a troublesome thing a wall is! I thought it was to defend me, and not I it! Of course, if they had no wall, they would not need to have any sentinels.”
—Henry David Thoreau (1817–1862)