From the 78th chapter of The Journey West [pdf], the greatest classic novel in Chinese history:
“Wujing is right,” said Brother Monkey. “Go to bed now, Master, and tomorrow morning I’ll go to court with you to see what this Elder of the Nation is like. If he’s human he’s probably a heretic who doesn’t follow orthodox ways but believes in drugs, and I’ll convert him with the essential teachings of intrinsic nature.
The above quote is Wukong (Brother Monkey) talking about the fake Daoist who suggested the king eat the hearts of children in order to be healthy.
“Your Majesty,” said Monkey, “from now on you should be less greedy for your sexual pleasures and accumulate more hidden merit. In whatever you do you should use your strong points to make up for your weaknesses. This is the way to get rid of your illness and prolong your life. That’s what we’ll tell you.”
All five of the protagonists in The Journey West are chaste, vegetarian, sober wanderers. Their qualities as given by the five elements are as follows:
Sun Wukong, The Monkey King: Metal
Tang Monk: Water
Zhu Bajie, Brother Pig, Wood Mother: Wood
Sha Monk: Earth
Little White Dragon, The White Horse: Fire
Their goal in the story is to reach Nirvana, which all characters but Bajie succeed in doing. Bajie tried hard but did not succeed, so he was given a better incarnation. The novel is typically read for the action scenes and stupidly misunderstood to be a story of a monkey and a pig (both of which are mere symbols of their elemental types).