“Men are disturbed not by things, but by the views they take of things.” – Epictetus
Not letting things bother you doesn’t mean you don’t care about them. It means that you understand them. You can say you want to do something about the world’s suffering without wailing and gnashing your teeth. Some things are in your control. Your reactions to events are, to a degree, not in your control. You can’t help whether or not something frightens you. However, you can choose how you act on that fear, if at all. Conversely, you can look at something and find something about that thing for which you can be grateful. By making that commitment to gratitude rather than disturbance, you will change your experience of the world profoundly.