Time is a golden river, so don't let it slip gently at your fingertips.
It's the night when men are reading. Teenagers only know play, do not know to study well, to the old time regret when they are young, why don't know to study hard.
a little time can really accomplish great things.
there will be many tomorrows after tomorrow. Everything will be wasted tomorrow.
if you don't come back in your prime, it's hard to get up in the morning.