Isolation always perverts; when a man lives only among his own sort, he soon begins to believe that his sort are the best sort. This attitude breeds both the arrogance of the conservative and the bitterness of the radical.

The principal difference between love and hate is that love is a irradiation, and hate is a concentration. Love makes everything lovely; hate concentrates itself on the object of its hatred.

Ancient boundaries are meaningless, except for political purposes; old divisions of clan and tribe are sentimental remnants of the pre-atomic age; neither creed nor color nor place of origin is relevant to the realities of modern power to utterly seek and destroy.

The difference between patriotism and nationalism is that the patriot is proud of his country for what it does, and the nationalist is proud of his country no matter what it does; the first attitude creates a feeling of responsibility, but the second a feeling of blind arrogance that leads to war.

And most of the failures in parent-child relationships, from my observation, begin when the child begins to acquire a mind and a will of its own, to make independent decisions and to question the omnipotence or the wisdom of the parent.

Most people are mirrors, reflecting the moods and emotions of the times; few are windows, bringing light to bear on the dark corners where troubles fester. The whole purpose of education is to turn mirrors into windows.

The best combination of parents consists of a father who is gentle beneath his firmness, and a mother who is firm beneath her gentleness.