Laconic Phrase
A laconic phrase says something with only words that are needed. Laconic refers to the very old people of Sparta, who talked this way. This is why people who say much with few words have laconic wit, or are using laconic phrases.
Laconic Phrase Media
Bust of Philip II of Macedon
Leonidas, a sculpture (c. 475 BCE) unearthed in Sparta in 1926 (Archaeological Museum of Sparta)
Other websites
The dictionary definition of laconic at Wiktionary