江山易改，本性难移。

A leopard never changes its spots.

Source: Tatoeba

Sentence Composition

=1 江山 Jiāngshān see 江山市 Jiāngshān Shì
=1 江山 jiāngshān
  1. rivers and mountains
  2. landscape
  3. country
  4. state power
=2 易 Yì
  1. surname Yi
  2. abbr. for 易經 Yìjīng, the Book of Changes
=2 易 yì
  1. easy
  2. amiable
  3. to change
  4. to exchange
  5. prefix corresponding to the English adjective suffix "-able" or "-ible"
3 改 gǎi
  1. to change
  2. to alter
  3. to transform
  4. to correct
4 本性难移 běnxìngnányí
  1. It is hard to change one's essential nature (idiom). You can't change who you are.
  2. Can the leopard change his spots? (Jeremiah 13:23)