Could we understand thinking as an activity of life, rather than as an abstract logical operation? How could we make sense of the (human) mind as something living, or as fundamentally instantiated by living beings? How can we model the characteristic dynamics of mental development, self-formation, and personal growth? Is the life of the mind as real as or even more real than the life of organisms? This colloquium draws together various models of the ‘life of the mind’ from across the history of philosophy.