A primary reason that evolution-of life-forms or technology-speeds up is that it builds on its own increasing order. Ray Kurzweil
But the primary reason for wanting the dollar to become more competitive in the near future is that we may need an increase in exports this year and in 2007 to sustain the economy's current pace of expansion. Martin Feldstein
A primary reason for my success in the classroom was that I couldn't forget that schooling was changing me and separating me from the life I enjoyed before becoming a student. Richard Rodriguez