"Throughout time, a man’s ability and desire to provide for those that depend on him has been central to his masculinity. While utilizing a combination of physical ability, wit, savvy and ambition to succeed, his role as the breadwinner is what drives a man to achieve. No matter the geographic location or social situation, men work primarily to feed and create an environment of comfort for their wife and family. This is the commonly accepted role of the man within the social system and proves a formidable challenge that every man must accept." (My emphasis)
Another excellent post on The Art of Manliness. Read the full post here.