Song dynasty: Lu you
The ancients learned nothing, and it takes time to grow old.
Learning: refers to reading and learning, that is, learning. Legacy: keep, keep. Try your best: try your best, without reservation, spare no effort, do your best. Youth: adolescence. Time: the time spent doing things. Start: Only.
What you get on paper is so shallow that you never know what you have to do.
Paper: books. Finally: After all. Sleep: I think. Shallow: shallow, shallow, limited. Know nothing: a deep and thorough understanding. Good: practice. Practice: Practice by yourself.
References:
1, A Dictionary of Common Words in Ancient Chinese, edited by Shen Lan, etc.: Changchun Publishing House, 2010: 36.79.156.50000.000000000505