Book excerpt: Understand Humanism is the definitive introduction to this diverse and increasingly prominent philosophy. This guide teaches you everything you need to know about humanism, from it's ancient origins and key figures, to humanist answers to pressing modern issues, like climate change and identity politics. NOT GOT MUCH TIME? One, five and ten-minute introductions to key principles to get you started. AUTHOR INSIGHTS Lots of instant help with common problems and quick tips for success, based on the author's many years of experience. TEST YOURSELF Tests in the book and online to keep track of your progress. EXTEND YOUR KNOWLEDGE Extra online articles at www.teachyourself.com to give you a richer understanding of psychology. FIVE THINGS TO REMEMBER Quick refreshers to help you remember the key facts. TRY THIS Innovative exercises illustrate what you've learnt and how to use it.