A proverb meaning that people are shaped by their surroundings; if you are 'dyed' by ink you will become black—i.e., associate with certain people and you become like them.
悪い仲間と付き合うと態度が変わることがある。墨に染まれば黒くなると言えるだろう。
When you keep company with bad companions your behavior can change. It's like the proverb 'if dyed in ink, you become black.'
職場の雰囲気が穏やかだと自分も落ち着く。環境の影響は大きい。墨に染まれば黒くなるのだ。
If the workplace atmosphere is calm, you become calm too. The influence of environment is strong — if dyed by ink, you become black.
子どもは親の言動を見て育つ。墨に染まれば黒くなるという教えを忘れてはいけない。
Children grow up watching their parents' words and actions. We should not forget the lesson 'if dyed by ink, you become black.'