Veganism is the commitment not to participate, insofar as possible, to the subjugation, ill treatment, and killing of sentient beings. Given that vegans advocate for the expansion of moral concern to all sentient animals, they avoid buying, using, and promoting any product or service involving the exploitation thereof.
Veganism is also a form of pre-figurative politics, as its advocates see themselves as living examples of what could be a vegan society. More or less consciously, each of them individually embodies mindsets, behaviors, and consumption choices they would like to be generalized.
Lastly, veganism should be understood as a political and social movement, with the clear goal of, “end[ing] the exploitation of animals by man,” as Leslie Cross put it in the seventh issue of The Vegan (1951). “Our aim,” he continues, “is not to make the present relationship between man and animal (which if honestly viewed is mostly one of master and slave) more tolerable, but to abolish it and replace it by something more worthy of man’s high estate.”