Every man takes the limits of his own field of vision for the limits of the world. - Arthur Schopenhauer

The real meaning of persona is a mask, such as actors were accustomed to wear on the ancient stage; and it is quite true that no one shows himself as he is, but wears his mask and plays his part. Indeed, the whole of our social arrangements may be likened to a perpetual comedy; and this is why a man who is worth anything finds society so insipid, while a blockhead is quite at home in it.

The life of an individual is a constant struggle, and not merely a metaphorical one against want or boredom, but also an actual struggle against other people. He discovers adversaries everywhere, lives in continual conflict and dies with sword in hand.

Men best show their character in trifles, where they are not on their guard. It is in the simplest habits, that we often see the boundless egotism which pays no regard to the feelings of others and denies nothing to itself.