"Learners are encouraged to discover facts and relationships for themselves."

"In the perception of the incongruous stimuli, the recognition process is temporarily thwarted and exhibits characteristics which are generally not observable in the recognition of more conventional stimuli."

"Stimuli, however, do not act upon an indifferent organism."

"The shrewd guess, the fertile hypothesis, the courageous leap to a tentative conclusion - these are the most valuable coins of the thinker at work. But in most schools guessing is heavily penalized and is associated somehow with laziness."

"There is a deep question whether the possible meanings that emerge from an effort to explain the experience of art may not mask the real meanings of a work of art."