죽은 아이 눈매가 곱다 -- The loveliest eyes are those of dead children.

This proverb remind us of just how much more preciously we think of things or people after we have lost them. (잃어버린 것이 더 귀하게 여겨짐을 비유적으로 이르는 말.)

[edit] See Also

• 죽다: to die
• 아이: a child
• 눈매: the shape of one's eyes
• 곱다: to be lovely