I'm jealous of them, but not because of money. I'm jealous of other people's ability do achieve.
I sit at home, waste my time on unproductive internet surfing, or other people's activities, like helping out at Scouts. I fill my hours, but none of it gets me anywhere. Every night I look back at another wasted day. I think about doing something, studying something, progressing. Developing personal power. But that requires a goal so as to know what choices to make. Never going to happen.
Then I see these entrepreneurs or university graduates or small business owners or personal trainers or... and yeah, I'm jealous. Oh to be a doer.
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assumption makes an 'ass' out of 'u' and 'mption'.