Authors:

We have all seen these circus elephants complete with tusks, ivory in their head and thick skins, who move around the circus ring and grab the tail of the elephant ahead of them.

Speech at the Cow Palace, San Francisco, California, on November 02, 1960. "John F. Kennedy Quotations: Profiles in Courage Quotations", www.jfklibrary.org.
We have all seen these circus elephants complete with tusks, ivory in their head and thick skins, who move around the circus ring and grab the tail of the elephant ahead of them.