你珍惜一个人，一定是感动过

Don't forget the things you once owned.

Treasure the things you can't get.

Don't give up the things that belong to you and keep those lost things in memory

曾经拥有的，不要忘记。不能得到的，更要珍惜。属于自己的，不要放弃。已经失去的，留作回忆。《曾经》