Fifty-two masterpieces, paintings and sculptures – seventeen from secret collections, never seen before –, selected for their outstanding quality and arranged to trace a journey of two and a half thousand years that starts in the 4th century BC and reaches the mid-20th century.
The theme is compelling and delicate: the need for dialogue in human life and in world affairs, its proper conception, its healthy and fruitful practice, the obstacles it meets and the ills it can suffer, its effects on the lives of individuals, of peoples, even of the arts.