放浪不羁

Explanation: Restrain: constraints. Headstrong indulgence, without indiscretion, without restriction. 　　Source: "Jin Shu Wang Changwen Biography": "less well-known to scholarship, and indulgent, state and neither the provision of life to." 　　Examples: ~ He is a man, he resigned, travel landscape, drinking, poetry. (Qing "Poetry XII")