But is seeking it a waste of time? Experts say Aristotle's advice teaches us that well-being comes not when we look for it but when we live with purpose and meaning.
Foolproof: 2000-year-old recipe for happiness
Recipe for happiness: Many believe Aristotle's ancient wisdom is still relevant today. Glossary
Resilient - Tough or able to cope with difficulty.
Spendthrift - Someone who spends lots of money in an irresponsible way.
Trivial - Silly or unimportant.
Grievances - Things that you want to complain about.