The Tragic hero (n.) must, in aesthetics, have his opposition outside himself, not within — which is perhaps precisely the trouble with Hamlet.
A Tragic hero (n.) is the role the ethical man refuses: though his suffering were the greatest, he strips off the hero's dress and has one word for his pain — guilt — and one hope — forgiveness.
A Tragic hero (n.) never leaves the ethical: he lets one form of it find its goal in a higher form — the father gives way to the state.
A Tragic hero (n.) does a second deed over time: he visits the man choked with sorrow and coaxes out his tears, for in the hero's sufferings the sufferer forgets his own.
The Tragic hero (n.) has access to mourning; Abraham, neither mourner nor tragic hero, must remain a hateful murderer.