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It may indeed be doubted whether butchers' meet is anywhere a necessary of life. Grain and other vegetables, with the help of milk, cheese, and butter, or oil where butter is not to be had, afford the most plentiful, the most wholesome, the most nourishing, and the most invigorating diet. Decency nowhere requires that any man should eat butchers' meat.

Adam Smith (1869). “An Inquiry into the Nature and Causes of the Wealth of Nations, Volume 2”, p.473
It may indeed be doubted whether butchers' meet is anywhere a necessary of life. Grain and other vegetables, with the help of milk, cheese, and butter, or oil where butter is not to be had, afford the most plentiful,