As long as we are here,we all should bare in mind that learning is a process and it never ends,anyone who thinks he or she have known all and don't need to learn or to be corrected again is making a very big mistake.
Learning is a process that we all need to embrace and keep checking ourselves up whether we are improving or not,if we aren't improving,then there is need for us to push ourselves more to learn  more things and place ourselves in a position that we can be corrected when wrong or when we are deviating.