In most cases, to be reasonable means not to be obstinate, which in turn points to conformity with reality as it is. The principle of adjustment is taken for granted. When the idea of reason was conceived, it was intended to achieve more than the mere regulation of the relation between means and ends: it was regarded as the instrument for understanding the ends, for determining them.

Whoever is not prepared to talk about capitalism should also remain silent about fascism.

At present, when the prevailing forms of society have become hindrances to the free expression of human powers, it is precisely the abstract branches of science, mathematics and theoretical physics, which ... offer a less distorted form of knowledge than other branches of science which are interwoven with the pattern of daily life, and the practicality of which seemingly testifies to their realistic character.

When even the dictators of today appeal to reason, they mean that they possess the most tanks. They were rational enough to build them; others should be rational enough to yield to them.

Plato and his objectivistic successors ... preserved the awareness of differences that pragmatism has been invented to deny the difference between thinking in the laboratory and in philosophy, and consequently the difference between the destination of mankind and its present course.

The world is so possessed by the power of what is and the efforts of adjustment to it, that the adolescent's rebellion, which once fought the father because his practices contradicted his own ideology, can no longer crop up. ... Psychologically, the father is ... replaced by the world of things.

The endeavor of scientific research to see events in their more general connection in order to determine their laws, is a legitimate and useful occupation. Any protest against such efforts, in the name of freefom from restrictive conditions, would be fruitless if science did not naïvely identify the abstractions called rules and laws with the actually efficacious forces, and confuse the probability that B will follow A with the actual effort make B follow A.