Man and his deed are two distinct things. Whereas a good deed should call forth approbation and a wicked deed dis-approbation, the doer of the deed, whether good or wicked always deserves respect or pity as the case may be. Hate the sin and not the sinner is a precept which though easy enough to understand is rarely practised, and that is why the poison of hatred spreads in the world.
It is the duty of every cultured man or woman to read sympathetically the scriptures of the world. If we are to respect others' religions as we would have them respect our own, a friendly study of the world's religions is a sacred duty.
There will have to be rigid and iron discipline before we achieve anything great and enduring, and that discipline will not come by mere academic argument and appeal to reason and logic. Discipline is learnt in the school of adversity.