时光总最擅长酿苦酒
[shí guāng zŏng zuì shàn zhăng niàng kŭ jiŭ]
'Time is always best at brewing bitter wine'. It conveys the sorrow felt as time passes, creating more sadness, difficulties, or pain instead of good memories or happiness. This could be about personal experiences like losing friendships or loved ones, or it could refer to historical events.