You have reached the pinnacle of success as soon as you become uninterested in money, compliments, or publicity.

Orlando A. Battista (1917-1995) Canadian-American chemist, aphorist

Quotoons: A Speaker’s Dictionary, No. 3962 (1977 ed.)
    (Source)

Often misattributed to Thomas Wolfe. More discussion about the origin of quotation: You Have Reached the Pinnacle of Success as Soon as You Become Uninterested in Money, Compliments, or Publicity – Quote Investigator®.