Erin Pettigrew

Apr 17 2008 LINK
Well, if they’re not going to be an active investor - and very few should try to do that - then they should just stay with index funds. Any low-cost index fund. And they should buy it over time. They’re not going to be able to pick the right price and the right time. What they want to do is avoid the wrong price and wrong stock. You just make sure you own a piece of American business, and you don’t buy all at one time.
— Advice from Warren Buffet [Fortune]  I actually wanted to quote his entire interview, because it’s so aphoristic, but this will suffice.