We still live in a world of such gross injustice and inequality, that only privileged people like ourselves can afford to think of eros and art as top concerns in life. They are important, for sure, but I think it's high time to shift priorities around, away from selfish indulgence, and toward more concern for the wellbeing of so many others who suffer atrocities, injustice, and famine, all over the planet.

If a theory purports to explain everything, then it is likely not explaining much at all.

The downside of skepticism: it can easily turn into an arrogant position of a priori rejection of any new phenomenon or idea, a position that is as lacking in critical thinking as the one of the true believer, and that simply does not help either science or the public at large.

Often we can change things, and a realistic attitude - including envisioning worse case scenarios - actually helps to accomplish that change. But if you truly cannot do anything about something, then why on earth would you want to make things even worse for you by falling into despair? It seems like adding a self-inflicting injury to the already existing one.

What the world needs is more compassion; love in the broad sense, and use of practical reason to solve human problems. What it needs less is ideological and religious fanaticism, of which, unfortunately, there currently is aplenty.

I believe Stoicism can help anyone who takes it seriously and begins to practice it. It will help them flourish because it will provide them with a compass for navigating life, a general, flexible, framework to set priorities, and a set of techniques to achieve serenity and equanimity.

The Stoic discipline of action, which is connected to the virtue of justice, says that we ought to treat others fairly and we should engage in social and political activity. This is further supported by the Stoic idea of cosmopolitanism, and by the famous "circles of concern" identified by Hierocles, who counseled that we should refer to other people as brothers and sisters, to constantly remind ourselves that we are members of the same human family.