I have no useful theories about love and marriage.
Theories are patterns without value. What counts is action.
I do not believe in conspiracy theories.
I know my theories and findings are hard for you to accept because they are so original and extraordinary.
People love conspiracy theories.
Goals and objectives are based on theories and foundations.
Theories pass. The frog remains.
Theories are always very thin and insubstantial, experience only is tangible.
Theories that go counter to the facts of human nature are foredoomed.
It is a test of true theories not only to account for but to predict phenomena.