Fill in the lines with appropriate ancient poems and sentences.

This is a road to the mountain of books, and learning is endless.

I am too superficial to learn on paper, but I don't know how to do it.

Xiao-he just showed his sharp corner, and the dragonfly had already stood on it.

The edge of the sword comes from sharpening, and the fragrance of plum blossoms comes from bitter cold.

As a stranger who is alone in a foreign land, I miss my relatives twice every festive season.