Following the inner logic

The left hemisphere decontextualizes the outer frame of the matter but is good at following the inner logic. 

Left hemispheres tend, as a result, to be persuaded by the theoretical power of the argument rather than by the experimental or the intuitive, common sense power of the argument. 

"The left hemisphere is the hemisphere of abstraction, which, as the word itself tells us, is the process of wresting things from their context. This, and its related capacity to categorise things once they have been abstracted, are the foundations of its intellectual power" (The Master and His Emissary, Iain McGilchrist, 2009; page 50).