《孟子·公孙丑章句上·第一节》
现在的时势就很利于用王道统一天下：夏、商、周三代兴盛的时候，国土都没有超过方圆千里的，而现在的齐国却超过了；鸡鸣狗叫的声音，从首都直到四方边境，处处可闻，而齐国就有那么多的民众。
今时则易然也。夏后、殷、周之盛，地未有过千里者也，而齐有其地矣；鸡鸣狗吠相闻，而达乎四境，而齐有其民矣。
The current situation is very favorable for unifying the world with the king's way: During the prosperity of the three dynasties of Xia, Shang, and Zhou, the territory did not exceed a thousand miles, but the current Qi state has exceeded that; the crowing of roosters and the barking of dogs can be heard everywhere from the capital to the borders, and the population of Qi is so large.