It is this movement of the absolute in man, this aspiration towards the full knowledge and perfect goodness which can never be completely attained, that constitutes man.
"Man, therefore, thus conditioned, must expect
He could not, what he knows now, know at first:
What he considers that he knows to-day,
Come but to-morrow, he will find mis-known;
Getting increase of knowledge, since he learns
Because he lives, which is to be a man,
Set to instruct himself by his past self:
First, like the brute, obliged by facts to learn,
Next, as man may, obliged by his own mind,