The number one rule of investing is "Never lose money." Every loss is a loss of capital and morale. Small investors,

 The number one rule of investing is "Never lose money." Every loss is a loss of capital and morale. Small investors, like "little moths," are often lured by the light of hope and rush in without warning, becoming prey to the whales with enormous capital. When a whale makes a small move, prices fluctuate violently. Little moths are therefore easily swallowed up by the investment game.