“Always be a first-rate version of yourself, instead of a second-rate version of somebody else.”
Judy Garland (1922–1969) actress, singer and vaudevillian from the United States
As quoted in Business Etiquette for the Nineties : Your Ticket to Career Success (1992) by Lou Kennedy, p. 8
Variant: Always be a first rate version of yourself and not a second rate version of someone else.