How to put up a biz

I came across in the internet a principle called The Zero Capital. I wonder how that takes place in order to establish a biz without any capital. I wanted to do such that. I am interested to put up businesses but to ask for OPM or Other People's Money. So far, I haven't found yet any institution or at least haven't talked to any who would be willing to shell out a loan to me for putting up a business. I should find out. The other solution could be to direct sell items to customers. With a very small capital, I can purchase goods and sell them to customers. I can save enough money for capital for a bigger business. I also want to save enough for my education and for lunch money. Plus support my family. I am really interested in money and I hope to learn about it through practical experience and education.