Exclusively of the abstract sciences the largest and worthiest portion of our knowledge consists of aphorisms: and the greatest and best of men is but an aphorism.
An aphorism ought to be entirely isolated from the surrounding world like a little work of art and complete in itself like a hedgehog.
But the person who scored well on an SAT will not necessarily be the best doctor or the best lawyer or the best businessman. These tests do not measure character leadership creativity perseverance.