Have no public opinions of your own, when asked; and ask for none. If you get into the habit of giving opinions you are inviting an argument at once. You may talk yourself out of a decision which was correct; you will become wishy-washy in your conclusions, because you will be afraid of giving an opinion which may turn out wrong. Soon you will be straddling the fence in your own mind; and you cannot make money in trading unless you can come to a decision.
– Humphrey Neill, Tape Reading & Market Tactics
