Diofanés citáty

„Člověk se musí ženit tak, aby pro něho manželství nebylo lákavým dobrodružstvím, ale šťastnou náhodou.“

„Žena ti ochotně vyhoví ve všem, po čem prahne.“

“As a square number is known to be the product of a number multiplied by itself, so every polygonal number, multiplied by one number and added to another, both of which depend upon the number of its angles, produces a square number. I shall prove this, and shall show also how from a given side to find its polygon and conversely. Some auxiliary propositions must first be proved.”

“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.”