Looking for an investment strategy that works in any market conditions is like searching for the proverbial fountain of youth. Neither exists in reality. The financial market is subjected to too many unknown factors eg the collapse of oil prices that can hurt blue chip stocks like Keppel Corp or a sudden war (God forbids) that may take place in any part of the world; all these events will affect the performance of the stock market. Every kind of investment strategy has its limitations but what are some time-tested investment strategies out there for us to consider?