Behavior is determined by the current stimulus situation and past reinforcement history.

The future is not a result of choices among alternative paths offered by the present, but a place that is created—created first in the mind and will, created next in activity.

The Government of the United States is a definite Government, confined to specified objects. It is not like the state governments, whose powers are more general.

The world is full of poetry, but few have the eyes to see it.

Abstraction allows for a kind of freedom that representation sometimes doesn't.