"El éxito es la mejor venganza contra cualquiera."

Simplified Meaning:

If someone hurts you or does something bad to you, trying to get back at them by doing something bad in return doesn't always help. Instead, the best way to show that person that they didn't win is by becoming successful. When you achieve your goals and become happy, it shows them that their bad actions didn't bring you down. Imagine a student who is bullied at school. Instead of fighting back, the student focuses on their studies and becomes top of the class. This success not only makes the bully's actions look pointless but also makes the bullied student feel proud and strong. By achieving personal or professional success, you show that you are above the negative actions of others. Instead of getting consumed by revenge, use those bad experiences as motivation to improve your own life. This way, you turn a negative situation into a positive outcome, proving that you are capable and resilient.