2. You don’t need to be Facebook This should be number one - or even just the whole article. Any startup, or a career in general, should not be an end unto itself, but a vehicle to A) fulfill your basic needs and B) get you what you want. While I believe entrepreneurship is often the best way to get both of these, shooting to be the next Facebook is unnecessary. You could keep that corporate job, build your credit, a…
This phrasing I think minimizes the positive impact you can have with those endeavors. Displacing temperamental landlords with professional landlords makes the world a better place, and I've found having property be their only source of income ratchets up the stakes so much that many landlords explode over nothing (I've had a landlord threaten to evict an entire house of unrelated tenants because someone -- unbeknownst to her, her son in the middle of normal maintenance -- had made a very slight mess in the kitchen).
More important than "you don't have to be Facebook" (as if everyone who tried could be even if they "had to") is: with proper diligence and care, running a business well DOES make a dent in the universe, with very few exceptions. It makes the lives of yours customers (and vendors, hopefully) better in ways that are tangible and appreciated.