Thoughts in abundance
I guess a person becomes wise the moment he realises that every thougt that erupts in mind is not worth capturing- he has to let many of them unnoticed- of many thoughts that he captures - not all them worth chasing- most them have to be discarded at once. Then when he realises that of the thoughts he chose to pursue further only few produce results. Then when he finally notices of all results obtained only few are considered as prized ones. Mind of a person produces about 50,000 thoughts a day.