What is the last sentence of the poem?

"The right way on earth is vicissitudes" means: constant variation, constant development and constant progress, which is the inevitable law of the development of human society.

Source: Mao Zedong's "The Seven Laws of the People's Liberation Army Occupy Nanjing" "It is advisable to chase the poor bandits with the only brave ones left, and not learn from the bullies.

If the sky is sentimental, it will grow old, and the right way in the world is vicissitudes. "

We should seize this great opportunity when the enemy is weak and we are strong, pursue the remnants of the enemy and liberate all China. Don't learn from Xiang Yu, a tyrant of Chu who indulges his enemies for fame and wealth and leads to his own failure. If nature has knowledge, it will abide by the unchangeable law of ups and downs.

Extended data:

If the heaven is sentimental, the heaven is old, and the human path is vicissitudes: the last sentence borrows a sentence from Li He's poem "Jin Tong Xian Han Fu". The original poem tells the legend that the extremely precious bronze fairy portrait made by Emperor Wu of the Han Dynasty was moved from Chang 'an to Luoyang by Wei Mingdi. The original sentence means that for such human hatred, if there is love in the sky, it will grow old because of sadness; What is said here is that if heaven has feelings and sees the darkness and cruelty of the reactionary rule of the Kuomintang, it will grow old because of pain; People oppressed by reactionaries naturally hope to completely overthrow reactionary rule and complete the earth-shattering revolutionary cause.

The right path on earth is the normal law of social development. Vicissitudes, the sea (sea) has become a mulberry field, which means great changes. The metaphor here is that the revolutionary road is difficult and tortuous. Ancient myth: Fairy Magu told another fairy king that since they met, the East China Sea has turned into a mulberry field three times (see Ge Hong's Fairy Biography).

Baidu Encyclopedia-The right path in the world is vicissitudes.