Looking for ancient poems about being grateful to teachers at your alma mater~

Untitled Li Shangyin

It is difficult to say goodbye when we meet,

The east wind is powerless and the flowers are withered.

Spring silkworms will not run out of silk until they are dead,

The wax torch will not dry until it turns to ashes.

In the morning mirror, I am worried about the change of my hair,

When I sing at night, I should feel the cold moonlight.

There is not much way to get to Pengshan.

The blue bird is diligent in visiting.

Four times of spring breeze bring preparation,

Several autumn rains wash away the gap.

The black hair accumulates frost and weaves the sun and the moon,

The chalk silently writes the Spring and Autumn Period.

Spring is not old even when the silk is exhausted,

The tears of candles turn to gray and become thicker in autumn.

Three thousand peaches and plums are sown in spring,

China is full of fruits in autumn.