Famous quotes containing the words principal and/or series:
“God should not be called an individual substance, since the principal of individuation is matter.”
—Thomas Aquinas (c. 1225–1274)
“I look on trade and every mechanical craft as education also. But let me discriminate what is precious herein. There is in each of these works an act of invention, an intellectual step, or short series of steps taken; that act or step is the spiritual act; all the rest is mere repetition of the same a thousand times.”
—Ralph Waldo Emerson (1803–1882)