Maturity: knowing where you're crazy, trying to warn others of the fact and striving to keep yourself under control.

William James once made an acute point about the relationship between happiness and expectation. He argued that satisfaction with ourselves does not require us to succeed in every endeavour. We are not always humiliated by failing; we are humiliated only if we first invest our pride and sense of worth in a given achievement and then do not reach it.

Mental health: having enough safe places in your mind for your thoughts to settle.

We fall in love because we long to escape from ourselves with someone as beautiful, intelligent, and witty as we are ugly, stupid, and dull. But what if such a perfect being should one day turn around and decide they will love us back? We can only be somewhat shocked-how can they be as wonderful as we had hoped when they have the bad taste to approve of someone like us?

The challenge for a human now is to be more interesting to another than his or her smartphone.

The problem isn't so much finding good ideas (there is no shortage) as embedding the ones we have into everyday practice.

We are presented with an unpleasant choice between either committing to peculiar concepts about immaterial deities or letting go entirely of a host of consoling, subtle or just charming rituals for which we struggle to find equivalents in secular society.