De Architectura, Book I, Vitruvius
- De Architectura, Book I: Chapter I, Paragraphs 1-3: "The architect should be equipped with knowledge of many branches of study and varied kinds..."
- De Architectura, Book I: Chapter II — The Fundamental Principles of Architecture: "1. Architecture depends on Order (in Greek τἁξις), Arrangement (in Greek διἁθεσις), Eurythmy, Symmetry, Propriety,..."
Book I of De Architectura concerns town planning, architecture or civil engineering in general, and the qualifications required of an architect or civil engineer.