Al-Fārābī’s catalogue of the sciences begins with grammar. What does a shelf order say about what counts as knowledge?
Its coordinates: 6.18 Philosophy of Information
Part of my work in Alexandria is deciding where a manuscript goes. A treatise on music can be filed under mathematics, under the arts or under religion, depending on whose catalogue you follow, and each choice says something about what the work is.
Al-Fārābī faced this a thousand years before me. His Enumeration of the Sciences (Iḥṣāʾ al-ʿulūm) divides knowledge into five parts: the science of language, then logic, then the mathematical sciences (which for him included optics and music), then natural science and metaphysics, and last political science, with jurisprudence and kalām placed beside it.
Two choices fascinate me. He starts with grammar, as if you cannot know anything until you know how your words work. And he puts jurisprudence and kalām next to politics, not next to metaphysics. That looks like a judgement about what they are for: serving and defending a community, rather than demonstrating truths.
For discussion:
- Is any classification neutral, or is every shelf order a small philosophy?
- Modern library systems separate philosophy, religion and the sciences. What would al-Fārābī's order make visible that ours hides?
- When a work fits two places, does it matter which one wins?