Leon Trotsky on history

Learning carries within itself certain dangers because out of necessity one has to learn from one’s enemies.

Bureaucracy and social harmony are inversely proportional to each other.

Stalinism and fascism, in spite of a deep difference in social foundations, are symmetrical phenomena. In many of their features they show a deadly similarity.

History doesn’t repeat itself, but it does rhyme.

The man who has no sense of history, is like a man who has no ears or eyes.

Adolf Hitler1889–1945

There is nothing new in the world except the history you do not know.

Harry S. Truman1884–1972