- 始终如一 shǐzhōngrúyī consistentunswerving from start to finish
- 表里如一 biǎolǐrúyī integrityexternal appearance and inner thoughts coincide; to say what one means and act as one
- 亲如一家 qīnrúyījiā close as familyfamily-like close relationship (idiom)
- 百闻不如一见 bǎiwénbùrúyījiàn seeing is believingSeeing something for oneself is more reliable and convincing than hearing about it from others many times.
- 一代不如一代 yīdàibùrúyīdài degeneratingto be getting worse with each generation
- 心口如一 xīnkǒurúyī honestto say exactly what one thinks; to be straightforward and have one's words match one's thoughts
- 一日不如一日 yīrìbùrúyīrì deterioratingto be getting worse by the day