SB 10.25.4
yathadrdhaih karma-mayaih
kratubhir nama-nau-nibhaih
vidyam anviksikim hitva
titirsanti bhavarnavam
Translation:
Their taking shelter of Krsna is just like the foolish attempt of men who abandon transcendental knowledge of the self and instead try to cross over the great ocean of material existence in the false boats of fruitive, ritual sacrifices.