Once a devotee approached Holi shri chandrasekarendra saraswathi, seer of Kanchi Sankara Matt and told during his permitted Darshan time that as many slokas, etc., written in sanskrit it is difficult to understand and doubt arises whether they are telling correct thing. For this with smile and silently called another visitor who was in the side of the devotee (who was also a devotee) near to him and asked to show the paper roll he hold.The person also immediately unrolled the paper and as that was a building plan started explained about the building construction. He was explaining that stairs are here, entrance is here etc., Acharya calmly asked the first devotee to see the building plan and asked whether he could understand anything from the plan and on receiving negative reply, Sankaracharya told, see, the plan is having just lines this side and that side I am also not understanding anything but this man as if knows everything telling that the lines are windows, entrance etc., How could we believe. such doubt arises is it not. The man studied for that and we are all obliging his words. Similarly slokas etc., written in sanskrit also. If we learn sanskrit we can understand everything easily. As the sanskrit was the spoken language in those days, they wrote everything in sanskrit as we are all now writing many things in English rather than other language.
Next, the sanskrit is our oldest language and still in many villages the sanskrit is spoken and can be cleared through http://www.thebetterindia.com/65046/sanskrit-village-mattur-shimoga-karnataka.
Moreover though born in a Muslim religion our Dr.Abdul Kalam was a learned man of sankskrit and he was very much cleared himself that our sanskrit manuals contains many treasure valued information.