The of the dragon and the tiger (again)

A teacher and student are talking, the teachers says I have taught you well, but you only learned half of what I taught you.  You are like tiger, quick, the first to strike and fearless.  But dragon is wise and fears what his power can do, an dragon always has a choice.  Student says but master tiger is all I know, what will happen if I learn to be like dragon, teacher says then you'll become a man...