The main characteristic of play - whether of child or adult - is not it content but its mode. Play is an approach to action, not a form of activity.

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.

Knowledge is justified belief.

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.

Surely knowledge of the natural world, knowledge of the human condition, knowledge of the nature and dynamics of society, knowledge of the past so that one may use it in experiencing the present and aspiring to the future--all of these, it would seem reasonable to suppose, are essential to an educated man. To these must be added another--knowledge of the products of our artistic heritage that mark the history of our esthetic wonder and delight.

Teaching is the canny art of intellectual temptation

We carry with us habits of thought and taste fostered in some nearly forgotten classroom by a certain teacher.