The true test of a brilliant theory [is] what first is thought to be wrong is later shown to be obvious.

Thought and theory must precede all salutary action; yet action is nobler in itself than either thought or theory

Chaos Theory is a new theory invented by scientists panicked by the thought that the public were beginning to understand the old ones.

Thought and theory must precede all salutary action; yet action is nobler in itself than either thought or theory.

Life had stepped into the place of theory and something quite different would work itself out in his mind.

The theory behind the paper is that actual chewing stimulates a neuronal and hormonal reflex that helps to awaken the gut. Certainly, there's a great deal of appeal to that theory.