每一分每一秒都珍贵每一时每一刻都珍惜
[mĕi yī fēn mĕi yī miăo dōu zhēn guì mĕi yī shí mĕi yī kè dōu zhēn xī]
The phrase means 'every minute and every second is precious; I cherish every hour and every moment.' It conveys a value for time and appreciation of the present. This can also hint at making the most out of life.