In part two of the introductory series on private property, Jeremy covers several economic principles that provide reasons for why private property is important.
The first is that private property protects the poor from abuse by the wealthy.
The second is that private property is needed for economic transactions, i.e., purchasing and/or trade.
The third is that private property is made when one takes something from the earth, what is commonly owned, and adds his or her labor to it, making that thing his property.