I, not events, have the power to make me happy or unhappy today. I can choose which it shall be. Yesterday is dead, tomorrow hasn't arrived yet. I have just one day, today, and I'm going to be happy in it.

The quote "I, not events, have the power to make me happy or unhappy today. I can choose which it shall be. Yesterday is dead, tomorrow hasn't arrived yet. I have just one day, today, and I'm going to be happy in it." by Groucho Marx emphasizes the power of choice in determining one’s emotional state. Marx suggests that happiness is not dependent on external circumstances or events, but rather on an individual's mindset and attitude. The choice to be happy or unhappy lies within oneself, and it is an active decision that can be made in the present moment.

The quote also highlights the importance of the present moment—today is the only time we truly have control over. Marx advises against dwelling on the past, which is gone, or worrying about the future, which is uncertain. By focusing on the present, individuals can find peace and joy in the here and now, appreciating what they have today rather than stressing over what they cannot change or predict.

Additionally, Marx encourages a mindset of positivity and empowerment, where individuals take responsibility for their own emotional well-being. This perspective is liberating because it places the control of one’s happiness squarely in their own hands, rather than allowing external factors to dictate their mood. It is a reminder that while we may not control everything around us, we can still choose how to respond to situations and what attitude to adopt.

The origin of the quote comes from Groucho Marx, a comedian known for his sharp wit and humor. His philosophy of living in the moment and finding joy despite life’s challenges reflects his personal approach to life and work. While Marx was famous for his comedic roles, his words here offer a deeper insight into how he navigated life with a focus on personal agency and happiness.