Throughout my lifetime intelligence has been measured erroneously on a single linear scale of ability to manipulate abstract symbols. We are as yet unaware of the almost infinite varieties of intelligence, and we therefore ignore some of its most useful manifestations. Talent is intelligence committed to a purpose. To be alive and awake is to be learning. The substance being learned is determined by the individual not by the teacher.
Most people change their occupation many times in a lifetime.
The purpose of education is therefore to prepare people for change rather than to train them for a single profession. An uneducated person is one who is unaware of what he or she does not know. Expediency is the enemy of progress. No decisions are ever made with full certainty of all the implications. Stupidity is unfortunate but excusable.