Freewill or determinism


It is universally allowed that nothing exists without a cause of its existence, and that chance, when strictly examined, is a mere negative word, and means not any real power which has anywhere a being in nature. But it is pretended that some causes are necessary, some not necessary- Hume



Do you believe in freewill?

If you believe God is omniscient, or if you believe in predestination , how can mankind have freewill?