That is terrible advice.
If you work at a startup then compensation will be a mixture of salary and equity. You should know your worth and negotiate your number when joining a startup. You should understand the details of the last financing: how much was raised? who were the investors? how long is the runway? what were the high-level economic terms of the deal?
You should ask around to see what is fair market terms for the options you should receive. You should do a search on angel.co/jobs and look at comparables.
Read Venture Deals by Brad Feld and Jason Mendelson even if you are not a founder. Founders and investors know this stuff. If you are naive going into your employment you may end up being screwed out of upside.
Get your papers straight.
Once they're in your employment contract, forget them. Stick them in a file cabinet someplace marked +4 years and see where things go. In that time, there will (probably) be more rounds of funding, which will dilute your shares. Things will change: valuations, personnel, perhaps executives. Don't waste time re-calculating your options all the time, it's an exercise in futility.
Anyways, I guess my point is not to view the stock as being worth anything--it's too easy to get attached to the "paper value" (or even potential value) of the stock. Focus on the learning & networking aspects of the job, not the payouts.