It starts and ends with a line 4 letters

Crossword clues for It starts and ends with a line 4 letters

Answer	Clue
RACE	It starts and ends with a line
ETTU	Start of the line that ends "Then fall, Caesar"
ETTU	Start of a Shakespeare line that ends "Then fall, Caesar"
COGITO	Start of a line ending in a sum?
GIRLSNOTASOFTEN	End of the zinger ... and start of the punch line