Each man was his own executioner and his own victim.

Every man for himself, his own ends, the Devil for all.

Every man has his personal devil waiting for him somewhere.

Each of us is the enemy [...] to the other and to himself. That's what I mean: I'm the enemy within myself. Unless I master that enemy, I always lose.

Only man can be an enemy for man; only he can rob him of the meaning of his acts and his life because it also belongs only to him alone to confirm it in its existence, to recognize it in actual fact as a freedom

Like every man I am my own worst enemy, but unlike most men I know too that I am my own saviour.

what greater enemy does one have than oneself?

Every man has inside himself a parasitic being who is acting not at all to his advantage.

Each man kills the thing he loves.

The most dangerous enemy is the one within.

And you shall find the greatest enemy
A man can have is his prosperity.

Each man kills the thing he loves

Често човек е най-злият враг на самия себе си

Mankind's great adversary.