He who laughs last, laughs longest.
The person who succeeds at the end is the person who truly wins. (마지막에 이기는 사람이 승자)
All that glitters is not gold.
Not everything that looks amazing actually is amazing. (겉모습이 다가 아니다)
While the cat is away, the mice will play.
Without supervision, people will do whatever they want. (호랑이 없는 곳에 토끼가 왕 노릇)