1. Might is right.   The need for something motivates us to create or get it.   It is easy to take advantage of others in their difficult times.   The powerful decide what is correct.   People in love do not see to each other's shortcomings.   Hint Dica Meio-a-meio   2. It is useless to flog a dead horse.   The need for something motivates us to create or get it.   There is no value lamenting that which cannot be undone.   It is a waste of time to argue about something done and long-forgotten.   Do not expect too much of something received as a gift.   Dica Meio-a-meio   3. It is a sad heart that never rejoices.   If we work with others ignoring their faults, then they will work with us ignoring ours.   One cannot be gloomy all the time.   It is always possible to improve one's conduct, no matter how long one has lead a morally bad life.   Satisfy oneself before paying for a purchase and not complain after the transaction.   Dica Meio-a-meio