My theory was that what I had to do was make a study of human behavior.

He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast.

Beautiful Evidence is about the theory and practice of analytical design.

And capital punishment, however ineffective it may be and through whatever ignorance it may be resorted to, is a strictly defensive act, - at least in theory.

Now the truth of the matter is that there are a lot of things people don't understand. Take the Einstein theory. Take taxes. Take love. Do you understand them? Neither do I. But they exist. They happen.

From this bestial view that the human mind consists of only sense certainty, pleasure and pain, Locke developed an equally bestial theory of the nation. Man originally existed in a State of Nature of complete liberty.

Life is so unlike theory.

I cannot help fearing that men may reach a point where they look on every new theory as a danger, every innovation as a toilsome trouble, every social advance as a first step toward revolution, and that they may absolutely refuse to move at all.

At the time, my personal research objectives were to provide Keynesian economics with more rigorous foundations and to tighten and elaborate the logic of macroeconomic and monetary theory.

The crisis triggered a fertile period of scientific ferment and revolution in economic theory.

I have a theory that the truth is never told during the nine-to-five hours.

I know that a good many champions have entertained the thought that the more they discourage youngsters, the longer they would reign. However, this theory never impressed me, and I always made it a point to give youths the benefit of my experience in bicycle racing.

Evolution is a bankrupt speculative philosophy, not a scientific fact. Only a spiritually bankrupt society could ever believe it. Only atheists could accept this Satanic theory.

Vietnam was a lie but at least there was a political agenda. It was the domino theory. Iraq is about nothing but George Bush's ego laced with imperialist ambitions. And it was helped by your government.

A feeble execution is but another phrase for a bad execution; and a government ill executed, whatever may be its theory, must, in practice, be a bad government.