This book presents Saint Bonaventure as a cutting-edge thinker who engaged with natural philosophy on its own terms. His final academic project was an unfinished collection of scholastic sermons titled Collationes in Hexaëmeron . At this moment in history, academics were clashing over the limits of cognition and the definition of science ( scientia ). Much has been written detailing how the incorporation of Aristotle's philosophy into university curricula eventually prompted the Condemnations of 1270 and 1277. But perhaps it is incorrect to conceive of these events in a frame of escalating tensions leading to collapse. Perhaps a new perspective can be found by venturing back to 1273, to see Aristotle through the eyes of a theologian who was both magister and minister, bishop and brother?one who respected the academy's rigor but also challenged its tendency toward self-absorption. Guiding readers through vision one of Collationes in Hexaëmeron , Benjamin Winter argues that Bonaventure's rejection of certain philosophical errors ought to be understood within the context of the virtuous person's journey to wisdom. Propositions such as the eternity of the world, the unicity of the intellect, and fated necessity are not variables in a zero-sum equation "balanced out" by truths of faith.

Instead, Bonaventure sees these propositions as opportunities to reflect charitably on nature and grace, emphasizing that just as knowledge is empty without love, understanding is insufficient without humility. Rather than renounce Aristotle or stifle scientific inquiry, Collationes in Hexaëmeron wholeheartedly acknowledges the affective and communal dimensions of philosophical knowledge. Bonaventure creates a magnificent and enduring text with powerful applications today.