haskeller.net

Purity is not a restriction. It is the liberation from implicit state, hidden mutation, and temporal coupling. When every function is a mathematical function, every program becomes a proof.

Composition is the fundamental operation of thought. In Haskell, f . g is not syntactic sugar -- it is the expression of a universal truth about how complex systems emerge from simple parts.

Types are not annotations added after the fact. They are the architecture that precedes implementation. The type signature is the blueprint; the function body is the building.