This chapter discusses diverse views of worlds worth living in, as described by different groups of students, young people, and adults. It also high-lights how the project of research and writing that produced this volume is an example of critical praxis: history making action directed towards realising the good for humankind. Perhaps, in this, it is an example of what Anna Stetsenko calls a ‘transformative activist stance’. In researching and articulating views of worlds worth living in, the contributors to the volume, and the participants with whom they spoke, not only began to imagine worlds worth living in, they also began to realise them.