There is a difference between justice and consideration in one's relations to one's fellow men. It is the function of justice not to do wrong to one's fellow men of considerateness, not to wound their feelings.
There are differences between us. But it doesn't make sense to emphasize that, because my future and yours is connected with everyone else's. So we have to take seriously our concern for all of humanity. When we focus on our individuality, humanity inevitably suffers. And once humanity suffers, each one of us will also suffer.
... let us unite, not in spite of our differences, but through them. For differences can never be wiped away, and life would be so much the poorer without them. Let all human races keep their own personalities, and yet come together, not in a uniformity that is dead, but in a unity that is living.
The various religions are like different roads converging on the same point. What difference does it make if we follow different routes, provided we arrive at the same destination?
There is no need to mention the great difference between the amount of satisfaction there is in just oneself being happy and the amount of satisfaction there is in an infinite number of people being happy.