(Jon of the Clue Crew shows a line segment sweeping out a circle on the monitor.)  Euclid's third postulate tells us that from any line segment, a circle can be drawn with one endpoint as the center & the segment itself as this line
The Dialogue itself forms an example of the distinction, since Achilles' lines 
form a ..... Johann Nikolaus Forkel, one of Bach's earliest biographers, tells the 
story as ...... (3) Given any straight line segment, a circle can be drawn having the
... [DOC] [TLE] District of Columbia States Applications for Phase 2 (PDF) - U.S. ... [PAR] readiness linethe former providing broad standards, the latter providing ....