最大的悲剧不是死亡,而是遗忘母语。
The greatest tragedy is not death, but forgetting one's mother tongue.
The only real failure in life is not to be true to the best one knows.
Let us be grateful to people who make us happy, they are the charming gardeners who make our souls blossom.
种一棵树最好的时间是20年前,第二好的时间是现在。