This volume is a collection of papers that highlights some recurring themes that have surfaced in the generative tradition in linguistics over the past 40 years. The volume is more than a historical take on a theoretical tradition; rather, it is also a "compass" pointing to exciting new empirical directions inspired by generative theory. In fact, the papers show a progression from core theoretical concerns to data-driven experimental investigation and can be divided roughly into two categories: those that follow a syntactic and theoretical course, and those that follow an experimental or applied path. Many of the papers revisit long-standing or recurring themes in the generative tradition, some of which seek experimental validation or refutation.