БЕРЕГИ БРОВЬ, ГЛАЗ ЦЕЛ БУДЕТ

Extra measures of precaution will do no harm, they will save you from trouble. See Береженого Бог бережет (Б)

Cf:It is better to be safe than sorry (Am.,Br.). Precaution is better than repentance (Br.). You cannot be too careful (Am.,Br.)