How can I used Jquery for my own website full life?

Dear All,

I really don't understand and i'm really consider to use Jquery as free version and I try to read Jquery licence but I still don't understand. So please help to telling me if You used jquery on my website and use alot function too
But I consider one day Jquery will block my website or not and do i can used it full life or not

Please help

Thanks you very much for your help