Rohn was a successful entrepreneur and motivational speaker who, after having founded several successful direct marketing companies, went on to hold speeches and mentor other like-minded people in business. Most famously, he trained Herbalife International founder Mark R. Hughes—and the rest of that MLM success story is history. The rest of the quote goes, “(…) But it won’t be long before I’m working full-time on my fortune. Can you imagine what my life will look like?” The takeaway here is that careers are slow to build, require massive time investments, and, in the long run don’t mean you’ll have too much to retire on—if you only rely on them. So, then, what are some sound ways of building residual income these days?