妙法蓮華經玄義 8.86

8.86

就同而為喻，從初至後，同是於金，凡夫、圓教，俱是實相也。就異為喻者，初石異金，次金異器，器異丹。丹色淨徹，類若清油，柔軟妙好，豈同環釧，狀乖色別，故不一種。此就與奪破會，簡其得失。

Using the analogy in terms of sameness: from beginning to end, all equally are gold; the ordinary person and the perfect teaching are alike the real mark. Using the analogy in terms of difference: at first the stone differs from gold; next, gold differs from utensils; utensils differ from the elixir. The colour of the elixir is purely transparent, resembling clear oil, soft and wonderfully fine—how could it be the same as rings and bracelets? Their forms diverge and their colours differ; thus they are not of one kind. This distinguishes their gains and losses in terms of granting and denying, refuting and synthesizing.