滿意 vs.競爭  c- c-

One is related to peace, Which one?
When one is 滿意 he sings more, or speaks more in happy tone.
If 競爭, he does not sing but complains more

尋章摘句耗時辰,文心雕龍先雕蟲
先左後右，先上後下, 為什麼