Sloka from gita.

Prakrter guna sammudhah,
sajjante guna karmasu,
tan akrtsna -vido mandan,
krtsna -vin  na vicaleyet.

meaning.
              Men deluded by the dispositions of Nature ,get attached to work prompted by these dispositions
Those who know the whole Truth should not unsettle these dull witted men of imperfect understanding.

29 th verse chapter 3-- yoga of action.