"The characteristic sign of a mind of the highest standard is the directness of its judgment. Everything it utters is the result of thinking for itself; this is shown everywhere in the way it gives expression to its thoughts. Therefore it is, like a prince, an imperial director in the realm of intellect. All other minds are mere delegates, as may be seen by their style, which has no stamp of its own.Hence every true thinker for himself is so far like a monarch; he is absolute, and recognises nobody above him. His judgments, like the decrees of a monarch, spring from his own sovereign power and proceed directly from himself. He takes as little notice of authority as a monarch does of a command; nothing is valid unless he has himself authorised it. On the other hand, those of vulgar minds, who are swayed by all kinds of current opinions, authorities, and prejudices, are like the people which in silence obey the law and commands."
January 1, 1970
https://en.wikiquote.org/wiki/Thought