Off topic: The best six doctors anywhere and no one can deny it

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Wikiquote

The best six doctors anywhere

And no one can deny it

Are sunshine, water, rest, and air

Exercise and diet.

These six will gladly you attend

If only you are willing

Your mind they'll ease

Your will they'll mend

And charge you not a shilling.

Anonymous nursery rhyme set to the tune of "Yankee Doodle", quoted in "The Health Club" in School Life, Vol. IV (January - June 1920 ), p. 17