What is wrong with “expedient”? Briefly, it is deeply rooted in an ethical frame of reference which is about as diametrically opposed to the ethical perspective of the Lotus Sutra as one can get. The Random House Unabridged Dictionary has as its second definition of “expedient. conducive to advantage or interest, as opposed to right.” Moreover, “expediency” is defined as “a regard for what is polite or advantageous rather than what is right or just; a sense of self-interest.” Though one could argue that this term does not have to carry such freight, the fact of the matter is that it is deeply embedded in a biblical ethics which is essentially deontological because it is rooted in notions of divine commandment and human obedience. In John 11:49-50, for example, we find:
And one of them, named Caiaphas, being the high priest that year, said to them, “You know nothing at all. Nor do you consider that it is expedient for us, that one man should die for the people, and not that the whole nation perish.
And in several places, in the King James version at least, Saint Paul uses the term “expedient” to mean “profitable” to oneself. The Bible, of course, had a major impact on what terms mean in English.
Thus, a very basic meaning of “expedient” is an act which is done in spite of principle in order to benefit oneself. It is rooted in an ethics and in a vision of reality in which there is a radical, unbridgeable gap between principles and self-interest. Though they may be internalized, principles are given, by God or Nature, or the metaphysical structure of reality. Principles are lawlike, and thus their disobedience requires just punishment. To do the expedient thing is to ignore or go against what is right in order to gain some selfish benefit.
But this is exactly what, according to the Lotus Sutra, hōben cannot be. It is part of the very definition of hōben in the Lotus Sutra that it is always for the benefit of someone else. Not in this sutra, or in any other that I know of, is there even a single example of hōben in which the doer forsakes some principle for his or her own benefit.
A Buddhist Kaleidoscope; Gene Reeves, Appropriate Means as the Ethics of the Lotus Sutra, Page 380