For many years, this elementary treatise on advanced Euclidean geometry has been the standard textbook in this area of classical mathematics; no other book has covered the subject quite as well. It explores the geometry of the triangle and the circle, concentrating on extensions of Euclidean theory, and examining in detail many relatively recent theorems. Several hundred theorems and corollaries are formulated and proved completely; numerous others remain unproved, to be used by students as exercises.
The author makes liberal use of circular inversion, the theory of pole and polar, and...

Description: From its very beginning, Christian faith has been engaged with religious violence. The first Christians were persecuted by their co-religionists and then by imperial Rome. Jesus taught them, in such circumstances, not to retaliate, but to be peacemakers, to love their enemies, and to pray for their persecutors. Jesus's response to religious violence of the first century was often ignored, but it was never forgotten. Even during those centuries when the church herself persecuted Christian heretics, Jews, and Muslims, some Christians still struggled to bear witness to the peace...