... it is because one can build a compelling set of arguments - informed by science and thoroughly compatible with it - that to believe in anything despite the complete lack of evidence is, in fact, irrational.

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.

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.

There are clearly people for whom Stoicism immediately "clicks," it comes natural, and others for whom it doesn't. Then again, Stoicism isn't the only positive philosophy of life. Buddhism is an excellent alternative, if it speaks more clearly to one's personality or cultural background.

"Fate permitting" is a standard Stoic phrase meant to remind ourselves that planning things is up to us, but the ultimate outcomes are not under our control. It helps us to develop an attitude of equanimity toward the universe. We should very much try to change things for the better, that's the whole point of the Stoic discipline of action.

Given the power and influence that science increasingly has in our daily lives, it is important that we as citizens of an open and democratic society learn to separate good science from bunk. This is not just a matter of intellectual curiosity, as it affects where large portions of our tax money go, and in some cases even whether people’s lives are lost as a result of nonsense.

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