Wayne Gretzky and Isaac Newton are two of the most influential figures in their respective fields. Wayne Gretzky is a Canadian former professional ice hockey player who is widely regarded as the greatest hockey player of all time. He played 20 seasons in the National Hockey League for four teams from 1979 to 1999. Isaac Newton was an English physicist, mathematician, astronomer, natural philosopher, alchemist, and theologian who is widely recognized as one of the most influential scientists of all time. He is best known for his laws of motion and universal gravitation.