BEIJING — When protesters in Hong Kong became more forceful on Monday, the People’s Daily reprised a recent speech of China’s leader, Xi Jinping, calling on party cadres to carry forward the struggle of the Communist revolution fought 70 years ago.

“We must overcome all kinds of difficulties, risks and challenges,” he said.

It was the latest signal that Mr. Xi has no intention of bowing to the protesters’ demands for greater rights. On the contrary, the storming of Hong Kong’s legislature on Monday night seems to have given ammunition to hard-liners and prompted the sharpest denunciations in Beijing so far, suggesting the ruling Communist Party’s patience was wearing thin.

“I think they have realized it is time to take measures” to restore order, Song Xiaozhuang, a professor in the Center for Basic Laws of Hong Kong and Macau at Shenzhen University, said in a telephone interview, referring to the authorities in Beijing.

“This does not mean there is no patience, or that they want to get it done promptly, but it does mean that they cannot wait for long.”