There were many Americans and some Irish and some tough Irish and a few French, and several Italians and Poles, and they walked informally arm in arm with each other in twos and threes or in long rows, almost universally distinguished by the straight mouth and the considerable chin--for this was the Society of Jesus, founded in Spain five hundred years before by a tough-minded soldier who trained men to hold a breach or a salon, preach a sermon or write a treaty, and do it and not argue . . .