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Historical Reflection: Why Many Important Philosophers Avoided the Consumption of Animals

  • Writer: plant five method
    plant five method
  • Dec 19, 2024
  • 3 min read

Updated: Apr 28, 2025


a bold image of a neon sign that says philosopher in pink against a green background

Throughout history, some of the greatest thinkers have adopted a lifestyle free from the consumption of animals. These individuals often questioned societal norms and their dietary choices' ethical and spiritual dimensions. Their philosophies reflect profound considerations about humanity's relationship with the natural world and its creatures.

The Ethical Awakening of Ancient Greece

In ancient Greece, a cradle of Western philosophy, figures such as Pythagoras and Plato abstained from eating animals. Pythagoras, often credited as one of the earliest proponents of vegetarianism, believed in the transmigration of souls—the idea that all living beings share a common spiritual essence. For Pythagoras, consuming animals was not merely a dietary choice but a spiritual and moral one.


While not entirely vegetarian, Plato expressed a vision of an ideal society in his work The Republic, where citizens would live primarily on plant-based foods. He associated a meat-heavy diet with indulgence and societal decay, linking moderation in consumption to harmony within oneself and the community. However, it is important to note that these dietary recommendations were context-specific and not necessarily reflective of his practice.

Eastern Philosophies and Reverence for Life

Eastern traditions also hold a long-standing commitment to avoiding harm to animals. Jainism, one of the world's oldest religions, mandates ahimsa (non-violence) as a core principle, extending this compassion to all living beings. Similarly, Buddhism—with its emphasis on reducing suffering—encourages its followers to consider the ethical implications of their food choices.


Even Confucian and Taoist thinkers, while not explicitly advocating vegetarianism, emphasized living in harmony with nature. Their teachings often reflect an inherent respect for the interconnectedness of all life, though they stopped short of explicitly mandating vegetarian practices.

The Enlightenment and Rational Ethics

Fast forward to the Enlightenment, and we find thinkers like Jean-Jacques Rousseau and Jeremy Bentham questioning humanity's treatment of animals. Rousseau, in his seminal work Emile, argued that compassion for animals was a natural human trait and that society should nurture this empathy rather than suppress it.


Bentham, a utilitarian philosopher, famously posed the question: "The question is not, Can they reason? nor, Can they talk? but, Can they suffer?" His emphasis on the capacity for suffering as a moral metric laid the groundwork for modern animal rights movements.

Romanticism and the Return to Nature

The Romantic era saw a resurgence of interest in living simply and harmoniously with nature. Poets and philosophers like Percy Bysshe Shelley openly criticized the exploitation of animals. Shelley, an avowed vegetarian, argued that a diet free from animal products was not only healthier but also aligned with humanity's natural instincts.

Modern Reflections

In more recent history, figures like Albert Einstein and Leo Tolstoy carried forward the philosophical tradition of eschewing animal consumption. Einstein considered the ethical and environmental benefits of vegetarianism, though it should be noted that he was not strictly vegetarian throughout his life. Tolstoy connected abstinence from meat with a broader commitment to non-violence and spiritual growth.

Applying Historical Wisdom to Modern Living

What can we learn from these philosophical giants today? Their reflections encourage us to reconsider the impact of our choices on the world around us. At The Plant Five, we draw from these timeless insights to inspire intentional, compassionate living that respects all forms of life. For example, consider the practice of simplifying meals to focus on whole, natural ingredients. This approach not only aligns with ethical living but also fosters a greater connection to the earth and its resources, echoing the harmonious principles advocated by thinkers like Pythagoras and Shelley.

For those embarking on or continuing their plant-based journey, these historical examples serve as reminders that this path is rooted in profound thought and a legacy of questioning the status quo. We honor their teachings by embracing practices that connect us to nature, reduce harm, and foster personal and collective growth.

What These Philosophers Teach Us Today

The common thread among these thinkers is their ability to question the status quo and consider the broader implications of their choices. In a world increasingly aware of the environmental, ethical, and health impacts of animal agriculture, their reflections resonate more than ever. Their philosophies challenge us to consider not just what we eat, but how our choices align with our values and the kind of world we wish to create.


By looking to history, we see that avoiding the consumption of animals is not a modern trend or a niche movement. It is a deeply rooted tradition of ethical inquiry and compassion, one that continues to inspire and challenge us to this day. Let’s continue this legacy together, one intentional choice at a time.

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