(trying to convince Hamlet to forget his father) Hamlet, you are so sweet and such a good son to mourn your father like this. But you have to remember, that your father lost his father, who lost his father before him, and every time, each son has had to mourn his father for a certain period. But overdoing it is just stubborn. It’s not manly. It’s not what God wants, and it betrays a vulnerable heart and an ignorant and weak mind. 

(part of the famous "my offence is rank" monologue) Oh, my crime is so rotten it stinks all the way to heaven. It has the mark of Cain on it, a brother’s murder. I can’t pray, though I want to desperately. My guilt is stronger even than my intentions. And like a person with two opposite things to do at once, I stand paralyzed and neglect them both. 

(learning about Hamlet murdering Polonius) Oh, this is terrible! It would’ve happened to me if I’d been there. His wildness is a threat to all of us—to you, to me, to everyone. How will we deal with this violent deed? I’m the one who will be blamed for not restraining and confining this mad young man. But I loved him so much I didn’t want to think about what I had to do.