How do you know if the next act you are about to do is the right one or the wrong one? Consider the face of the poorest and most vulnerable human being that you have ever chanced upon, and ask yourself if the act that you contemplate will be of benefit to that person; and if it will be, it's the right thing to do, and if not, rethink it.
Exploitation of the poor can be extinguished not by effecting the destruction of a few millionaires, but by removing the ignorance of the poor and teaching them to non-cooperate with their exploiters.
The lower animals are our brethren. I include among them the lion and the tiger. We do not know how to live with these carnivorous beasts and poisonous reptiles because of our ignorance.