Mencius - Book 1, Part 2, Chapter 11A

The people of Ch'î, having smitten Yen, took possession of it, and upon this, the princes of the various States deliberated together, and resolved to deliver Yen from their power. The king Hsüan said to Mencius, 'The princes have formed many plans to attack me: how shall I prepare myself for them?' Mencius replied, 'I have heard of one who with seventy lî exercised all the functions of government throughout the kingdom. That was T'ang. I have never heard of a prince with a thousand lî standing in fear of others.'

'It is said in the Book of History, As soon as T'ang began his work of executing justice, he commenced with Ko. The whole kingdom had confidence in him. When he pursued his work in the east, the rude tribes on the west murmured. So did those on the north, when he was engaged in the south. Their cry was "Why does he put us last?" Thus, the people looked to him, as we look in a time of great drought to the clouds and rainbows.

'The frequenters of the markets stopped not. The husbandmen made no change in their operations. While he punished their rulers, he consoled the people. His progress was like the falling of opportune rain, and the people were delighted. It is said again in the Book of History, "We have waited for our prince long; the prince's coming will be our reviving!"
~ James Legge translation via nothingistic.org ~

Go here to read the introductory post to this serialized version of the Works of Mencius.