It has been said that the historian is the avenger, and that standing as a judge between the parties and rivalries and causes of bygone generations he can lift up the fallen and beat down the proud, and by his exposures and his verdicts, his satire and his moral indignation, can punish unrighteousness, avenge the injured or reward the innocent.

It is not a sin to introduce a personal bias that can be recognized and discounted. The sin in historical composition is the organization of the story in such a way that bias cannot be recognized.

The task of the historian is to understand the peoples of the past better than they understand themselves.

Of all the intellectual hurdles which the human mind has confronted and has overcome in the last fifteen hundred years the one which seems to me to have been the most amazing in character and the most stupendous in the scope of its consequences is the one relating to the problem of motion.

But the greatest menace to our civilization today is the conflict between giant organized systems of self-righteousness - each system only too delighted to find that the other is wicked - each only too glad that the sins give it the pretext for still deeper hatred and animosity.

In the last resort, sheer insight is the greatest asset of all.

Those people work more wisely who seek to achieve good in their own small corner of the world ... than those who are forever thinking that life is in vain, unless one can. do big things.