Be mindful of your reputation and act with prudence and decorum:
* "This above all: to thine own self be true." This is the famous line, but it's often misinterpreted. It doesn't mean be selfish, but rather be authentic and consistent in your actions. Polonius wants Laertes to be known for his integrity and good character.
* "Neither a borrower nor a lender be." This advises against being indebted to others, both financially and in terms of favors. It suggests maintaining financial independence and avoiding situations that could compromise your reputation.
* "Beware of entrance to a quarrel, but being in, bear 't that the opposed may beware of thee." This encourages diplomacy and conflict avoidance, but also advises on how to handle conflict effectively if it arises.
Be careful about your social interactions and avoid excessive indulgence:
* "Give thy thoughts no tongue, nor any unproportioned thought his act." This suggests controlling your emotions and carefully considering the consequences of your words and actions.
* "Neither a borrower nor a lender be; For loan oft loses both itself and friend, And borrowing dulls the edge of husbandry." This advises against taking on debt, both financially and socially, as it can lead to financial ruin and strained relationships.
* "To thine own self be true," This means being genuine and consistent in your actions and avoid becoming someone you're not.
In essence, Polonius wants Laertes to be a respectable, responsible, and well-regarded young man. He emphasizes the importance of reputation, social decorum, and self-control. However, his advice is often seen as overly cautious and somewhat hypocritical given Polonius' own actions throughout the play.