to be at large; to get off scot-free; refers to a criminal remaining free and unfettered while evading legal punishment

free and easy; unconstrained; taking life easy or living without any worries

the first chapter of the Daoist classic Zhuangzi, discussing spiritual freedom and the transcendence of worldly usefulness

doing as one pleases; footloose and fancy-free; living a carefree and leisurely life without constraints

the Peripatetic school of philosophy, referring to the school of ancient Greek philosophy founded by Aristotle. The name comes from his habit of walking with his students while teaching at the Lyceum in Athens; also known as [[亚里斯多德学派|亞里斯多德學派|ya4 li3 si1 duo1 de2 xue2 pai4]].