evidence: 40+ Muhammad Ali Quotes: The name Muhammad Ali has long been synonymous with professional boxing. Considered as one of the true legends of the sport, he remains to be one of the greatest heavyweights in history. But what goes unmentioned and is often thrown under the bus are Muhammad Ali’s quotes and insightful words of wisdom. Muhammad Ali, formerly Cassius Clay, is not only known for his prowess in the ring but also his ability to stir controversy. He is regarded as a figurehead in the fight for racial equality and religious freedom, as well as his anti-Vietnam war views and evasion from conscription. He is also known as a spokesperson for Parkinson’s disease. [...] 1. Impossible is not a fact. It’s an opinion. Impossible is not a declaration. It’s a dare. Impossible is potential. Impossible is temporary. Impossible is nothing."