It is fair, therefore, to assume that growing rationality is a guarantee of man's growing morality. - Reinhold Niebuhr

Power,” he wrote, “always thinks it has a great soul and vast views beyond the comprehension of the weak; and that it is doing God’s service when it is violating all His laws. Our passions, ambitions, avarice, love and resentment, etc., possess so much metaphysical subtlety and so much overpowering eloquence that they insinuate themselves into the understanding and the conscience and convert both to their party.

For man as an historical creature has desires of indeterminate dimensions.

While it is possible for intelligence to increase the range of benevolent impulse, and thus prompt a human being to consider the needs and rights of other than those to whom he is bound by organic and physical relationship, there are definite limits in the capacity of ordinary mortals which makes it impossible for them to grant to others what they claim for themselves.