Experto crede

''Experto crede'' is a Latin motto which means ''Trust in one experienced''; literally, "trust the expert". It is usually used by an author as an aside to the reader, and may be loosely translated as: "trust me", "trust the expert", "believe one who has tried it", or "have faith in experience". When "''crede''" is followed by a personal name (e.g., ''crede'' John Smith), the expert in question is the name given.

In the variant form ''experto credite'' it is a quotation from the ''Aeneid'' by Virgil (Book XI, line 283). Provided by Wikipedia