"There is a sadness in this world, for we are ignorant of many things. Yes – we are ignorant of many beautiful things. Things like the truth. So sadness in our ignorance is very real. The tears are real. What is this thing called a tear? There are even tiny ducts – tear ducts – to produce these tears should the sadness occur. Then the day when the sadness comes. Then we ask, 'Will the sadness which makes me cry, will the sadness that makes me cry my heart out, will it ever end?' The answer, of course, is yes. One day, the sadness will end." (thetvdb.com)