'We know want is good until we have lost it

'We know want is good until we have lost it we know not what is good until we have lost We know not what is good until we have lost it we always know not what is good until we have lost We know not what is good until we have lost 我看不懂. we knoe not what good until we have lost it it is true that we do not know what we have got until we los Maybe it is ture ,that we do not know what we have got until Though I know lost is not a good thing but sometimes we have It is not until you have lost your health____you know its va We do not know how important something is until we lose it 什 it is true that we do not know what we have got we lose it.选