English

Noun

more heat than light ‎(uncountable)

1. More passion or conflict than enlightenment or illumination on a subject.
   • 1996, Stephen Edelston Toulmin, ‎Björn Gustavsen, Beyond Theory: Changing Organizations Through Participation (page 1)

     So, in any overall account of the social sciences, disputes are liable to break out about what is, or is not, truly scientific research; and, too often, these disputes generate more heat than light.