Ideas must be distinct before reason can act upon them

A little reasoning from the past.  Thomas Jefferson in a letter to Francis Adrian Van der Kemp (30 July 1816), in this instance denouncing the doctrine of the Trinity.  He might as well have been denouncing Social Justice Theory and Critical Theory, two ideas also constituting unintelligible propositions.  

Ridicule is the only weapon which can be used against unintelligible propositions. Ideas must be distinct before reason can act upon them.