严于律己

嚴於律己
yányúlǜjǐ
to be strict with oneself

CEDICT

对自己的约束很严格。

重編國語辭典

Entry Composition

1 严 yán
  1. tight (closely sealed)
  2. stern
  3. strict
  4. rigorous
  5. severe
  6. father
=2 于 yú
  1. to go
  2. to take
  3. sentence-final interrogative particle
  4. variant of 于 yú
=2 于 yú
  1. (of time or place) in; at; on
  2. (indicating any indirect relation) to; toward; vis-à-vis; with regard to; for
  3. (indicating a source) from; out of
  4. (used in comparison) than
  5. (used in the passive voice) by
3 律己 lǜjǐ
  1. self-discipline; self-restraint
  2. to discipline oneself; to be strict with oneself

Related entries

严以律己 yányǐlǜjǐ
  1. to be strict with oneself (idiom)
  2. to demand a lot of oneself
嚴以律己, 寬以待人。

Pardon all but thyself.

Source: Tatoeba