Hamlet makes a big deal about being upset with his father's murder, but he never steps up to face Claudius. If Hamlet is unhappy, he should listen to this quote and face his problems if he expects change.
The world judges me by the decisions I make, never does it see the options I had to choose from. Good to remember, we never know what path someone had to walk down. Another reason not to judge people so harshly.
Life is too short to wake up in the morning with regrets. So, love the people who treat you right and forget about the ones who don't. And believe that everything happens for a reason. if you get a chance- take it