In the book "The fountain of gold - The three monkey record of money" written in 1755 the author writes about 3 rules:
- "See no evil" - When you see a bullish (bearish) trend, don't get caught up in it; consider it an opportunity to sell (buy).
- "Hear no evil" - When you hear a bullish or bearish news, don't trade on it.
- "Speak no evil" - Don't speak to others about what you are going to do in the market.