進退中繩 jìn tuì zhōng shéng

DEFINITIONS

  1. to advance or retreat, each has its rules (idiom from Zhuangzi); many translations are possible

CHARACTERS

進 jìn advance, make progress, enter
退 tuì step back, retreat, withdraw
中 zhōng central; center, middle; in the midst of; hit (target); attain
繩 shéng rope, string, cord; measure, restrain