If you pick up a starving dog and make him prosperous, he will not bite you. This is the principal difference between a dog and a man.

Where justice is denied, where poverty is enforced, where ignorance prevails, and where any one class is made to feel that society is in an organized conspiracy to oppress, rob, and degrade them, neither persons nor property will be safe.
Frederick Douglass, Speech, April 1886US abolitionist (1817 - 1895)