“When buying shares, ask yourself, would you buy the whole company?”
Rivkin’s logic holds out, why would you want to buy a part of the company, if there’s no way you would want to buy the company itself? If you aren’t willing to take part, then shares should be considered an all or nothing kinda thing.
I think this principle can also be applied to purchases (Amazon purchases in particular for me). When I buy small pieces of something, let’s use the example of a computer.
If I’m buying a hard drive, memory sticks, and various other pieces of a computer, it’s important to look at the big picture.
If I don’t want the computer as a whole, then why waste my time buying the pieces (let alone taking the time to build it)? If a purchase, acquisition, or general decision is not going to bring long term happiness, or contribute to your business and financial well being, then make a different decision that will.