János Bolyai published his work on non-Euclidean geometries in 1932, three years after discovering them. His father Farkas Bolyai received an interesting letter soon after. Gauss wrote to Bolyai: "To praise it (János's work) would amount to praising myself. For the entire content of the work... coincides almost exactly with my own meditations which have occupied my mind for the past thirty or thirty-five years." His friendship with Bolyai was strained as a result of this unsubstantiated ...