I opened up my rebuttal by explaining that there are only two types of theories: Those that divide the world into two types of theories, and those that do not.

Someone once defined a social problem as a situation in which the real world differs from the theories of intellectuals. To the intelligentsia, it follows, as the night follows the day, that it is the real world that is wrong and which needs to change.

Very simple was my explanation, and plausible enough—as most wrong theories are!

Scientific people . . . know very well that Time is only a kind of Space.

This sort of people are so taken up with their theories about the rights of man that they have totally forgotten his nature.

Therefore psychologically we must keep all the theories in our heads, and every theoretical physicist who is any good knows six or seven different theoretical representations for exactly the same physics.

As usual, nature’s imagination far surpasses our own, as we have seen from the other theories which are subtle and deep.

If there is something very slightly wrong in our definition of the theories, then the full mathematical rigor may convert these errors into ridiculous conclusions.

The invention of gunpowder and the constant improvement of firearms are enough in themselves to show that the advance of civilization has done nothing practical to alter or deflect the impulse to destroy the enemy, which is central to the very idea of war.

People love conspiracy theories.

There are only two main theories of government in our world. One rests on righteousness and the other on force. One appeals to reason, and the other appeals to the sword. One is exemplified in the republic, the other is represented by despotism

Our theories of the eternal are as valuable as are those which a chick which has not broken its way through its shell might form of the outside world.

The average, vague understanding of being can be permeated by traditional theories and opinions about being in such a way that these theories, as the sources of the prevailing understanding, remain hidden.