So, you just read that 'Even a moth (butterfly) lives a life' MIGHT be a translation of a Japanese proverb SOMEWHERE ON THE NET, and there's no clear evidence for that, right? I even doubt if that Japanese proverb really exists. In fact, I've checked in a Japanese proverb site ON THE NET and found that only one proverb contains "butterfly" among 1150 proverbs in the site, and there's no moth one there.