“What is reasoning? It is the result of doing away with the vital distinction which separates subjectivity and objectivity. As a form of abstract thought reasoning is not profoundly dialectical enough; as an opinion and a conviction it lacks full-blooded individuality. But where mere scope is concerned, reasoning has all the apparent advantage; for a thinker can encompass his science, a man can have an opinion upon a particular subject and a conviction as a result of a certain view of life, but one can reason about anything.”

“In the sciences, the authority of thousands of opinions is not worth as much as one tiny spark of reason in an individual man.”

“It is only about things that do not interest one, that one can give a really unbiassed opinion; and this is no doubt the reason why an unbiased opinion is always valueless.”

“The sum of the knowable, that soil which the human spirit must till, lies between all the languages and independent of them, at their center. But man cannot approach this purely objective realm other than through his own modes of cognition and feeling, in other words: subjectively. Just where study and research touch the highest and deepest point, just there does the mechanical, logical use of reason - whatever in us can most easily be separated from our uniqueness as individual human beings - find itself at the end of its rope. From here on we need a process of inner perception and creation. And all that we can plainly know about this is its result, namely, that objective truth always rises from the entire energy of subjective individuality.”

“It is my firm conviction that man has nothing to gain, emotionally or otherwise, by adhering to a falsehood, regardless of how comfortable or sacred that falsehood may appear. Anyone who claims, on the one hand, that he is concerned with human welfare, and who demands, on the other hand, that man must suspend or renounce the use of his reason, is contradicting himself. There can be no knowledge of what is good for man apart from knowledge of reality and human nature, and there is no manner in which this knowledge can be acquired except through reason. To advocate irrationality is to advocate that which is destructive to human life.”

“All rational knowledge is either material, and concerns some objects, or formal, and is occupied only with the form of understanding and reason itself and with the universal rules of thinking, without regard to distinctions among objects. formal philosophy is called logic. Material philosophy, however, which has to do with definite object objects and the laws to which they are subject, is divided into two parts. This is because these laws are either laws of nature or laws of freedom. The science of the former is called physics, and that of the latter ethics. The former is also called theory of nature and the latter theory of morals.”