“Happiness is a choice.”

In modern life, this Stoic idea teaches us that despite external circumstances, we can choose our internal responses. For example, if a colleague criticizes your work, instead of feeling defeated, you can choose to see it as an opportunity for growth and self-improvement. By consciously choosing a positive perspective, you can maintain your happiness despite challenges.

Finally, brothers, whatever is true, whatever is honorable, whatever is just, whatever is pure, whatever is lovely, whatever is commendable, if there is any excellence, if there is anything worthy of praise, think about these things.

The verse encourages choosing thoughts that are true, noble, right, pure, lovely, and admirable. This aligns with the Stoic idea that happiness is a choice, as it requires courage to intentionally focus on positive perspectives amidst challenges and criticism.