Socrates and Plato are right: whatever man does he always does well, that is, he does that which seems to him good (useful) according to the degree of his intellect, the particular standard of his reasonableness.
Egoism is the law of perspective applied to feelings: what is closest appears large and weighty, and as one moves farther away size and weight decrease.
Whether a man hides his bad qualities and vices or confesses them openly, his vanity wants to gain an advantage by it in both cases: just note how subtly he distinguishes between those he will hide his bad qualities from and those he will face honestly and candidly.
It is our needs that interpret the world; our drives and their For and Against. Every drive is a kind of lust to rule; each one has its perspective that it would like to compel all other drives to accept as a norm.
All human life is sunk deep in untruth; the individual cannot pull it out of this well without growing profoundly annoyed with his entire past, without finding his present motives (like honor) senseless, and without opposing scorn and disdain to the passions that urge one on to the future and to the happiness in it.
It is absolutely impossible for a subject to see or have insight into something while leaving itself out of the picture, so impossible that knowing and being are the most opposite of all spheres.
There is a lake that one day refused to flow away and threw up a dam at the place where it had before flowed out and since then this lake has always risen higher and higher. Perhaps the very act of renunciation provides us with the strength to bear it ; perhaps man will rise ever higher and higher when he no longer flows out into a God.