"The final aspect of truth is pragmatic: that which is true is that which works’ for us, in the broadest possible sense of the word. In the case of certain beliefs which are not accessible to empirical testing for example, religious beliefs or secular ideologies truth’ is almost entirely assimilated to what the William James called pragmatic cash value’, and which evolutionary theorists would call survival value’. We cannot, however, reduce the difference between all truths and all falsehoods simply to the difference between what works and what doesn’t. If we did, we would still have to explain why some things do and some things don’t work. While beliefs may feel true because they work’, ultimately, most of our beliefs that work do so because they are true," - Raymond Tallis.
(Hat tip: 3QD)