Texas Dep't of Mental Health and Mental Retardation, 746 S.W.2d 203 (Tex.1987); see also Camarena v. Texas Employment Comm'n, 754 S.W.2d 149 (Tex.1988). However, the trial court did not abuse its discretion in refusing to award attorney fees against the defendant school districts. See Oake v. Collin County, 692 S.W.2d 454 (Tex.1985). Although we have ruled the school financing system to be unconstitutional, we do not now instruct the legislature as to the specifics of the legislation it should enact; nor do we order it to raise taxes. The legislature has primary responsibility to decide how best to achieve an efficient system. We decide only the nature of the constitutional mandate and whether that mandate has been met. Because we hold that the mandate of efficiency has not been met, we reverse the judgment of the court of appeals. The legislature is duty-bound to provide for an efficient system of education, and only if the legislature fulfills that duty can we launch this great state into a strong economic future with educational opportunity for all. Because of the enormity of the task now facing the legislature and because we want to avoid any sudden disruption in the educational processes, we modify the trial court's judgment so as to stay the effect of its injunction until May 1, 1990. [FN8] However, let there be no misunderstanding. A remedy is long overdue. The legislature must take immediate action. We reverse the judgment of the court of appeals and affirm the trial court's judgment as modified. FN8. We note that the Governor has already called a special session of the legislature to begin November 14, 1989; the school finance problem could be resolved in that session.