This means that to entrust to science - or to deliberate control according to scientific principles - more than scientific method can achieve may have deplorable effects.
The eating of tundi fruit deprives a man of his sense, while the vacha root administered revives his reasoning immediately. A woman at once robs a man of his vigour while milk at once restores it.
The heart of a woman is not united; it is divided. While she is talking with one man, she looks lustfully at another and thinks fondly of a third in her heart.