一双清澈的眼倒影沧海桑田
[yī shuāng qīng chè de yăn dăo yĭng cāng hăi sāng tián]
It translates as 'A Pair of Clear Eyes Reflected Changes Over Time'. This is a highly picturesque way of saying that even through all life's changes, one's innocence or clarity remains unaltered.