You are likely to hear from "Gurus" are trying to sell you something relating to investing or trading : Don’t Let Your Money Die A Slow Death In Cash.
You are likely to hear from your parents or old relatives who are advising you based on their own experience during AFC (1998) in the stock market. Before AFC (1998), CPF members were allowed to invest or trade in whatever way they deemed fit to become rich in the stock market : Don't Gamble With Your Hard Earned Money In The Stock Market......