What Shall We Do Then?, 1902:

„Property today is the root of all evils: off the sufferings of those who possess it or are deprived of it, the reproaches of conscience of those who misuse it, and the danger of collision between those who have a superfluity and those who are in need.

Property is the root of the evil, and at the same time is the very thing to gain which all the activity in our society today is directed. It guides the activity of the whole world."