Notes

Hamlet's tragic flaw is his inability to act. By examining his incapability to commit suicide, putting on a play to delay killing Claudius and the inability to kill Claudius A tragic flaw is the failing of a tragic hero, a character who suffers a downfall through the tragic flaw in mistaken choices or in personality.
When the Ghost, his dead father, appears to him and charges him with the arduous task of taking revenge for his most foul murder, Hamlet is compelled to accept the challenge even though he fears to:
While it is true that Hamlet hesitates, Hamlet's flaw is not one single thing. In addition to hesitation, Hamlet is fated to his own destruction.
His other flaw is hubris, the sin of thinking oneself godlike.
Hamlet wants to ensure that the soul of Claudius goes to hell. At that moment Hamlet dooms himself. Any human being could take the life of another, but taking the soul of another? That is God's province, and when Hamlet decides that he will act as God in this instance, he has completed the circle which will lead to his own destruction.