Achieving financial independence through passive income requires dedication, strategic planning, and a willingness to explore various avenues. While these 21 ideas offer a diverse range of options, it's essential to research and choose the ones that align with your skills, interests, and financial goals.

Aristotle Onassis's legacy as a wealth builder is a testament to his wisdom, determination, and strategic thinking. By applying his timeless principles—knowing yourself, taking calculated risks, diversifying investments, building strong relationships, adapting to change, exercising patience, and embracing continuous learning—you can pave your own path to financial success.