There is no existence of that which is Asat (unreal), and there is non non-existence of that which is Sat (real). The truly learned men perceive the correct conclusion of the both.
नासतो विद्यते भावो नाभावो विद्यते सतः। उभयोरपि दृष्टोऽन्तस्त्वनयोस्तत्त्वदर्शिभिः॥