辯之目的
The Purpose of Disputation
夫辯者,將以明是非之分,審治亂之紀,明同異之處,察名實之理,處利害,決嫌疑。焉摹略萬物之然,論求群言之比。以名舉實,以辭抒意,以說出故。以類取,以類予。有諸己不非諸人,無諸己不求諸人。
The purpose of disputation is to clarify the distinction between right and wrong, to examine the principles of order and chaos, to illuminate the points of sameness and difference, to investigate the relationship between names and actualities, to determine benefit and harm, and to resolve doubt. It outlines the nature of the myriad things and seeks comparisons among various doctrines. It uses names to refer to actualities, uses propositions to express ideas, and uses explanations to bring forth reasons. It draws conclusions by analogy and grants claims by analogy. If one possesses a quality oneself, one does not condemn it in others; if one lacks it oneself, one does not demand it of others.
Notes
The 'Lesser Selection' is the most systematic treatment of logic in ancient Chinese philosophy. It classifies forms of argument (analogy/辟, parallel/侔, precedent/援, extension/推) and identifies their potential pitfalls. This opening passage defines the goals of rational discourse in terms remarkably similar to modern logic textbooks.
