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Perhaps it is the lowest of the qualities of an orator, but it is, on so many occasions, of chief importance,--a certain robust and radiant physical health; or--shall I say?--great volumes of animal heat.

Ralph Waldo Emerson (2013). “Delphi Complete Works of Ralph Waldo Emerson (Illustrated)”, p.2421, Delphi Classics
Perhaps it is the lowest of the qualities of an orator, but it is, on so many occasions, of chief importance,--a certain robust and radiant physical health; or--shall I say?--great volumes of animal heat.