The book of science
- The character known as Euclid,
- or Eukleidēs in the Greek,
- wrote the textbook on mathematics,
- laying out in a system,
- based on definitions and axioms,
- each theorem rigorously proven,
- that established the logic
- that all educated people studied
- for twenty-three centuries.
- Euclid took from Plato
- the use of definitions and axioms,
- reworked theorems by Eudoxus of Cnidus,
- perfected theorems by Theaetetus,
- based the books of his Elements
- on Pythagoras of Samos,
- Hippocrates of Chios,
- and other Pythagorean
- or Athenian mathematicians,
- but Euclid worked his borrowings
- into a comprehensive deductive system
- with his own rigorous proofs
- so that today his name is synonymous
- with . . . uh . . . Euclidean geometry.
- Euclid measured a line
- only in relation to the length of another line.
- He measured an angle
- only in relation to the perpendicular.
- He used positive numbers and fractions;
- negative numbers were not geometrically meaningful.
- Multiplication of two lengths
- produced an area.
- Numbers were more understandable as geometric quantities
- than as Alexandrian numerals.
- Letters (elements in the Greek)
- label points in the diagrams
- so that the text can simply reference them.
- That the signifier is not the signified dissolves in memory.
- Etymology persists as meaning.
- Your name becomes you.
- A smell can evoke everything.
- When the magician or comedian points,
- pay attention to the end of his finger.
- (Ha ha. Just kidding!)