Carl Sagan on history

Imagination will often carry us to worlds that never were. But without it, we go nowhere.

For small creatures such as we the vastness is bearable only through love.

Extraordinary claims require extraordinary proof.

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