Controlled Substance

Famous quotes containing the words controlled and/or substance:

“To do the same thing over and over again is not only boredom: it is to be controlled by rather than to control what you do.”
—Heraclitus (c. 535 B.C.–c. 475 B.C.)

“Just as a chemist “isolates” a substance from contaminations that distort his view of its nature and effects, so the work of art purifies significant appearance. It presents abstract themes in their generality, but not reduced to diagrams.”
—Rudolf Arnheim (b. 1904)