一寸光阴一寸金

1. • time is precious

     saying

Character by character

• 一(yī)one
• 寸(cùn)a unit of length
• 光(guāng)light
• 阴(yīn)surname Yin
• 一(yī)one
• 寸(cùn)a unit of length
• 金(jīn)surname Jin