The Humility of Reason challenges a deep assumption of philosophy: that its questions are properly pursued as if from the standpoint of a fully realized species. J. L. Schellenberg argues that, despite our growing technological sophistication, humanity remains at an early stage of development. When we consider the emotional, social, moral, and intellectual growth that might still be attained, what we have achieved so far appears, by comparison, surprisingly small. This early-stage claim, if taken seriously, has potentially transformative consequences for philosophy. The importance of what Schellenberg calls 'the early-stage rule', that we should adapt ourselves and our projects to humanity's developmental condition, is evident. Philosophers have largely failed to adapt in this way, and this failure is itself a reflection of immaturity. What is required is a new kind of humility: not the familiar humility grounded in human limitations, but a developmental humility, an awareness of how early we are. The result of this awareness is stage-sensitive inquiry, a new way of doing philosophy.Applying stage sensitivity across a wide range of philosophical problems, Schellenberg shows how what initially seems a constraint turns out to be a powerful resource. Philosophers have often proceeded under assumptions shaped by early-stage distortions or by misplaced expectations of maturity, treating their problems as timeless puzzles awaiting timeless solutions. When we step back and take in the macroscale, we recognize our position in the human story, and those assumptions come into question. At the same time, a new way forward suggests itself. Some problems must be scaled to our present capacities; others—more radically—turn out to be stage-defined, requiring entirely new ways of thinking. By attending to these possibilities, Schellenberg shows how familiar debates can be clarified, reshaped, and in some cases resolved—offering a striking new vision of philosophical progress.
