Seeing the old cow working silently in the field reminds me of that poem by Cao Cao.

Cao Cao, the tortoise is alive.

Although the tortoise has a long life, it has its moments.

The snake rides the fog and eventually turns to dust.

The old horse crouches, aiming at thousands of miles;

The martyrs were full of courage in their later years.

The surplus and contraction period is not only in the sky;

Blessings that nourish grace can last forever.

I am glad to use this poem to express my inner desire.