Gary L. Francione said this quote
“ If you are a feminist and are not a vegan, you are ignoring the exploitation of female nonhumans and the commodification of their reproductive processes, as well as the destruction of their relationship with their babies;If you are an environmentalist and not a vegan, you are ignoring the undeniable fact that animal agriculture is an ecological disaster;If you embrace nonviolence but are not a vegan, then words of nonviolence come out of your mouth as the products of torture and death go into it;If you claim to love animals but you are eating them or products made from them, or otherwise consuming them, you see loving as consistent with harming that which you claim to love.Stop trying to make excuses. There are no good ones to make. Go vegan. ”