SB 11.26.24
tasmat sango na kartavyah
strisu strainesu cendriyaih
vidusam capy avisrabdhah
sad-vargah kim u madrsam
Translation:
Therefore one should never let his senses associate freely with women or with men attached to women. Even those who are highly learned cannot trust the six enemies of the mind; what to speak, then, of foolish persons like me.