Euclid's Book 1 begins with 23
definitions — such as point, line, and surface. Following a
Jigsaw Puzzle: Click Here to Play .
The first few
Definition 1. A point is that which has no part.
Definition 2. A line is breadthless length.
Definition 3. The extremities of a line are points.
Definition 4. A straight line is a line which lies evenly with the points on itself.
Typography Art in Motion
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