Until the river bank widens at low tide, and no wind blows my lonely sail. ... night gives way to the ocean of the sun, and the old year melts in freshness. These two sentences are very famous.

The former embodies the poet's philosophical attitude, positive attitude towards life and high-spirited enterprising spirit. Time is short, but it is not pessimistic.

The latter wrote the poet's great ambition and grand mind to forge ahead and unite the country. These two capitals are classic works of Cao Cao.