To whom it may concern: Aldus asks you again and again that if you want anything from him you make it brief and then leave directly, unless you have come, like Hercules, to hold up the arms of an exhausted Atlas. There will always be work for you to do here, and for as many others who walk in, too.
Quisquis es, rogat te Aldus etiam atque etiam: ut si quid est quod a se velis, perpaucis agas, deinde actutum abeas: nisi tanquam Hercules defesso Atlante, veneris suppositurus humeros. Semper enim erit, quod et tu agas, et quotquot huc attulerint pedes.
Original text (Latin)
Notes from Wikiquote
Partial translations | Whoever you are, Aldus asks you again and again what it is you want from him. State your business briefly and then immediately go away. (Fletcher Clemons, Aldus Manutius: A Legacy More Lasting than Bronze (2015), p. 94) | Talk of nothing but business, and dispatch that business quickly. (Hoyt's New Cyclopedia of Practical Quotations (1922), p. 95) | See: T. F. Dibdin, Introduction to the Knowledge of Rare and Valuable Editions of the Greek and Latin Classics, vol. 1 (1827), p. 436; A. Firmin-Didot, Alde Manuce et l'Hellénisme a Venise (Paris, 1875), p. 153–154