During the course of human civilization, horses had lost its privilege and become the peers of pigs and cows. Now, however, it had retired to its rightful place and replaced by its metallic counterpart.
Examples (Wiktionary)
Mandarin
闲居是一种奢侈。
閒居是一種奢侈。
xián jū shì yī zhǒng shē chǐ .
Being able to stay at home doing nothing in particular is a kind of luxury.