Decline, don't even have to think about it. There's a fairly reasonable chance that I'll earn that much money anyway within 15-20 years (my likely job has a starting salary of over $100 K, and even that's a backup plan), and that's excluding the possibility of an inheritance with a rather wealthy family. Even if that weren't the case though, I'd still have to turn it down. If I knew that I would never be able to earn money again, I'd turn into a miser, because what if I got robbed or had an expensive medical issue? Also, inflation means that costs of living will definitely increase drastically over time, and this money isn't indexed to inflation. Finally, it would kill the motivation to do anything with my life, and I have far too long to live to let that happen.