What does this quote about justice, poverty, and property mean?
"Where justice is denied, where poverty is enforced, where ignorance prevails, abd where any one class is made to feel that society is organized conspiracy to oppress, rob and degrade them, neither persons nor property will be safe."
What this quote is saying is essentially that if you oppress a group of people in your society, eventually a rebellion will happen and no one will be safe.
Looking at the quote, you can see that this meaning is there. Look at the first part of the quote, up to "neither persons nor property..." In that part, we are being told about a situation in which one group is made to think that all of society is out to get them. They feel oppressed and they feel as if they society is forcing them to be poor.
From there, the quote tells us what will happen in such a case. In such a case, neither people nor their property will be safe. That is, presumably, because the oppressed people will rise up and attack their oppressors.
To think about this in real-world situations, you can think of racial riots such as those in Los Angeles in 1992 or you can think of the Russian Revolution of 1917. In those cases, some group rose up as a result of feeling completely oppressed by society.