不塞不流，不止不行 [－－－－－－－－－]

Jyutping bat1 sak1 bat1 lau4 ， bat1 zi2 bat1 hong2
Pinyin bù sè bù liú ， bù zhǐ bù xíng

Definitions (Wiktionary)
  1. proverb
    There is no flowing without damming and no motion without rest.