By Peter Switzer, Switzer Super Report

There are two investment rules you cannot break if you are to run your own investments inside a self-managed super fund. The first is you need a great investment strategy and the second rule is you have to stick to your strategy unless your circumstances change.

Jack Bogle, the US legend of finance, who created a 'little' business called Vanguard, has often said: "Buy right and sit tight!" Stockbrokers hate this advice because it undermines how they make money ? having clients that chop and change trying to buy right and 'sell right' ? but that is a difficult game.

Lots of fund managers do this or try to do this and this is why the majority of them don't beat the S&P/ASX 200 index.

A few weeks back, I supported