These considerations bring us up to the problem: In what sense is logic something sublime? For there seemed to pertain to logic a peculiar depth — a universal significance. Logic lay, it seemed, at the bottom of all the sciences. For logical investigation explores the nature of all things. It seeks to see to the bottom of things and is not meant to concern itself whether what actually happens is that or that. It takes its rise, not from an interest in the fact of nature, nor from a need to grasp causal connexions: but from an urge to understand the basic, or essence, of everything empirical.