Here’s a really good article on William James and pragmatism. An excerpt:
In a world of chance and incomplete information, James insisted that truth was elusive but action mandatory. The answer: Make a decision and see if it works. Try a belief and see if your life improves. Don’t depend on logic and reason alone, add in experience and results. Shun ideology and abstraction. Take a chance. “Truth happens to an idea. It becomes true, is made true by events.”
I confess that I’ve become rather fond of pragmatism over the years.