When the gap between ideal and real becomes too wide, the system breaks down.

In April 1917 the illusion of isolation was destroyed, America came to the end of innocence, and of the exuberant freedom of bachelor independence. That the responsibilities of world power have not made us happier is no surprise. To help ourselves manage them, we have replaced the illusion of isolation with a new illusion of omnipotence.

To be right and overruled is not forgiven to persons in responsible positions.

An essential element for good writing is a good ear: One must listen to the sound of one's own prose.

For belligerent purposes, the 14th century, like the 20th, commanded a technology more sophisticated than the mental and moral capacity that guided its use.

A phenomenon noticeable throughout history regardless of place or period is the pursuit by governments of policies contrary to their own interests.

Words are seductive and dangerous material, to be used with caution.