The Great War differed from all ancient wars in the immense power of the combatants and their fearful agencies of destruction, and from all modern wars in the utter ruthlessness with which it was fought.
Remember the story of the Spanish prisoner. For many years he was confined in a dungeon... One day it occurred to him to push the door of his cell. It was open; and it had never been locked.
Just as the sentence contains one idea in all its fullness, so the paragraph should embrace a distinct episode; and as sentences should follow one another in harmonious sequence, so paragraphs must fit into another like the automatic couplings of railway carriages.
Lenin was sent into Russia by the Germans in the same way that you might send a phial containing a culture of typhoid or cholera to be poured into the water supply of a great city, and it worked with amazing accuracy.
There are no people in the world who are so slow to develop hostile feelings against a foreign country as the Americans, and no people who, once estranged, are more difficult to win back.