Architecture is the discipline of transforming the spaces where human life unfolds, through the deliberate organization of built environments that enable, enhance, and give meaning to human activities. Life consists in an opposition to the natural equilibrium of the universe. Architecture participates in this anti-entropic struggle, creating ordered spatial conditions that support life while being inevitably transformed by it. This tension generates architecture's essential character: robust enough to provide spatial structure yet flexible enough to allow human inhabitation. Architecture's primary domain remains the spatial dimension of human experience. The transformation of space creates effects throughout human life, but understanding these effects requires recognizing architecture's particular agency and limitations. Architecture serves life most effectively when it focuses on what it can directly control: the creation of spatial conditions that enable human flourishing. This focus acknowledges that architecture influences society primarily through its spatial qualities rather than through direct social programming. This theory, extrapolated from a series of texts written between 1995 and 2025, is expressed here through 100 fundamental concepts.