Seneca: When a man does not know what harbour he is making for, no wind is the right…

Source

From the book Moral Letters to Lucilius (Epistulae Morales), Letter 71; translated by Richard M. Gummere, 1917-1925 (Loeb Classical Library)

Also quoted as

Also quoted as “If one does not know to which port one is sailing, no wind is favorable.”