Letting him cry

So my son is almost two months old and my husband thinks when he starts crying at any time to just put him in a room and let him cry. I agree to a point, sometimes I have to because he's over tired and needs a nap. Where other times if he's not feeling well and generally fussy I like to cuddle with him and make sure he knows I'm here and that makes my hubby upset at me saying I'm not capable of just ignoring it when that happens and that its good for him to cry. What do I do? What are your thoughts?