"A human being who is supposed to make use of his reason for himself needs only freedom, nothing else."

"Indigenous Americans take on no 'formation' (Bildung)."

"The greatest good is the moral law itself."

"The understanding can intuit nothing, the senses can think nothing. Only through their union can knowledge arise."

"Treat humanity, whether in your own person or in the person of any other, always at the same time as an end, never merely as a means."