 Accordingly, the professions (lawyers, preachers, artists and scientists) are grammatical necessities, each profession accentuating an aspect of reality whose grammatical mode is the trajective, prejective, subjective and objective respectively. For Rosenstock-Huessy, a society’s survival and development depends very much on its ability to cope adequately with its inner and outer spatial and trajective and prejective temporal potencies. We need to work with all these potencies and the great danger of philosophy is that it elevates its own importance—and the procedures and grammatical elements which constitute it—at the expense of other potencies which are only disclosed and developed through other grammatical elements and procedures. In this respect, Rosenstock-Huessy sees that when philosophy tries to dominate society it does so at the expense of other powers of society and hence ultimately is pernicious. Its main deficiency lies in its under-appreciation of the fecundity and importance of the polyform nature of speech.