Linguistic mechanisms for less wrong cognition


I'm working on a conlang (constructed language) and would like some input from the Less Wrong community.  One of the goals is to investigate the old Sapir-Whorf hypothesis regarding language affecting cognition.  Does anyone here have any ideas regarding linguistic mechanisms that would encourage more rational thinking, apart from those that are present in the oft-discussed conlangs e-prime, loglan, and its offshoot lojban?  Or perhaps mechanisms that are used in one of those conlangs, but might be buried too deeply for a person such as myself, who only has superficial knowledge about them, to have recognized?  Any input is welcomed, from other conlangs to crazy ideas.