"Since all great swings or movements of the market are cyclic they act in accordance with periodic law."

 "Every movement in the market is the result of a natural law, and a Cause which exists long before the Effect takes place and can be determined years in advance. ... Everything moves in cycles as a result of the natural law of action and reaction. By a study of the past, I have discovered what cycles repeat in the future."

"... everything works according to past cycles ... history repeats itself in the lives of men, nations and the stock market.