If you want to know how negative you are, pay attention to how much you hate negativity in other people. Fragile, artificial positivity needs always to be surrounded by more positivity in order to stay positive, but the ability to be positive, happy, and even, at times, appreciative around 'negative people' is the mark of real positivity.
Don't trust a mirror that only tells you how wonderful you look.
The emphasis and the reason for a pure humility is to result in love for others; not always necessarily the belittlement of self. When there is pride and self-righteousness and being pretentiously too far above, generally, one has a difficult time reaching the compassionate side of love for others, the side that understands (or at least attempts to understand): 'I am aware that I am not so far from falling in the same way.' Humility seeks to understand, and sometimes even relate; and in result, the love lovingly, properly, effectively wills the removal of the destructive sins of another as from oneself.
Being a critic is easy.But if the critic tries to run the operation, he soon understands that nothing is as easy as his criticisms.Criticism without a solution is merely an inflation of the critic's ego.
As noble (and often ignoble) creatures of the universe, the people of the world must acknowledge the nakedness of long held beliefs and be open to constructive criticism. Even if the criticism comes from within or without the structures held sacrosanct.