The highest wisdom is seeing that in reality all phenomena are incomplete, impermanent, and not self. This understanding is totally freeing and leads to the great security and happiness which is called Nirvana. However, the Buddha doesn’t speak too much about this level of wisdom. It is not wisdom if we simply believe what we are told. True wisdom is to directly see and understand for ourselves.
At this level then, wisdom is to keep an open mind rather than being closed-minded, listening to other points of view rather than being bigoted; to carefully examine facts that contradict our beliefs, rather than burying our heads in the sand; to be objective rather than prejudiced and partisan; to take time about forming our opinions and beliefs rather than just accepting the first or most emotional thing that is offered to us; and to always be ready to change our beliefs when facts that contradict them are presented to us. A person who does this is certainly wise and is certain to eventually arrive at true understanding. The path of just believing what you are told is easy. The Buddhist path requires courage, patience, flexibility and intelligence.