17.14-16 Deva - etc.  upto manasam ucyate :  Honesty :  uprightness, i.e.,  the courage regarding what needs no hiding.  Which is true :  This is explained by 'Which is pleasant and beneficial'.  Pleasant : at the time of [hearing]  that speech.  And beneficial :  something in future.  This type of speech, but not merely speaking what actually happened, is called  'speaking the truth'.  Purity of thought :  'Thought'  denotes intention; its highest purity.