"The highest and most beautiful things in life are not to be heard about, nor read about, nor seen, but, if one will, are to be lived."

"The ethical individual is the one who chooses himself, and thereby chooses the universal."

"What is important is to find a truth which is true for me, to find the idea for which I am willing to live and die."

"The true humorist does not want to be a humorist, but an earnest man."

"Anxiety is the dizziness of freedom."