Adams was the leading spokesman for American independence, giving many speeches and serving on many committees towards that cause. He vehemently opposed the Stamp Act, the Sugar Act, and British colonial policy in general, and was one of the organizers of the Boston Tea Party. His constant criticism of the British contributed to the tensions which lead to the Boston Massacre (1770). Of Adams it has been said, "Temperament and circumstances combined to give Samuel Adams but one occupation - the public business; in which he demonstrated a passionate and unquestioned faith in the virtue of the cause he served. This is perhaps the principle key to the quality and the success of all his labors" (DAB).