Hamlet is a philospher and therefore could neve be a solid leader

Hi This is a HIGHSCHOOL paper only. I have started the essay but need some help as it is due Monday.
Thesis is Hamlet is a philospher and therefore could never be a solid leader because he is a coward, indecisive and untrue to himself.
I also need a secondary source. I am looking for that now, but if you could help with the essay I can add stuff later.
Three paragraphs with quotes. MLA format.