a notable or famous line — a striking phrase or verse (often used for an excellent haiku or aphorism)
彼の俳集には心に残る名句がいくつもある。
His haiku collection contains several memorable lines.
その小説の冒頭にある名句が読者の心を掴んだ。
A famous line at the beginning of that novel captured readers' attention.
教師は授業で生徒に名句を暗唱させた。
The teacher had students memorize notable lines in class.