We must exercise ourselves in the things which bring happiness, since, if that be present, we have everything, and, if that be absent, all our actions are directed toward attaining it.

Epicurus' quote, "We must exercise ourselves in the things which bring happiness, since, if that be present, we have everything, and, if that be absent, all our actions are directed toward attaining it," speaks to the central role that happiness plays in human life. As an ancient Greek philosopher, Epicurus believed that the pursuit of happiness should be the ultimate goal of life, and that everything we do should be aimed at achieving this state. In this context, exercise refers to developing habits and engaging in activities that foster happiness and well-being, rather than pursuing external desires or material gains that might not lead to lasting satisfaction.

The first part of the quote emphasizes that if happiness is present in our lives, we are content and fulfilled, having everything we need. This implies that happiness is not merely a fleeting emotion but a state of being that encompasses contentment, peace, and the absence of suffering. When happiness is truly present, according to Epicurus, it renders all other desires secondary because it provides the fulfillment we seek in life.

On the other hand, Epicurus argues that if happiness is absent, all of our actions are driven by the need to find it. This constant striving toward happiness can lead to a cycle of frustration and dissatisfaction if we are not mindful of how we seek it. Epicurus cautions that by focusing on superficial desires or external achievements, we might miss the true essence of happiness, which lies in cultivating inner peace and wisdom.

Ultimately, Epicurus' quote underscores the importance of focusing on what truly brings happiness, rather than chasing after transient pleasures or societal expectations. By prioritizing happiness in a meaningful way, and aligning our actions with it, we can achieve lasting fulfillment. The key to a happy life, according to Epicurus, lies in understanding and pursuing the things that truly lead to a peaceful and contented existence, rather than constantly seeking to fill our lives with external, often fleeting, sources of joy.