Half-truths are statements that have some insight or truth in them, but do not amount to a final or definitive truth that all competent judges should be able to accept. Complete truth requires that the relevant interpretative structures can be taken for granted, and can be expected to be understood by all competent language users. Disciplines such as philosophy, history, and sociology do contain a small number of complete truths, concerning some logical relations or such matters as the year of Columbus' arrival in the new world or recorded vote totals in some elections. But most of what they yield (the most interesting part) will consist of half-truths.