Diophantus Quote
Perhaps the topic [of this book] will appear fairly difficult to you because it is not yet familiar knowledge and the understanding of beginners is easily confused by mistakes; but with your inspiration and my teaching it will be easy for you to master, because clear intelligence supported by good lessons is a fast route to knowledge.
Following the dedication to Dionysus as quoted by Paul Drijvers, Secondary Algebra Education (2011) - Arithmetica (c. 250 AD)