If you judge, investigate.

"It took me a long time not to judge myself through someone else's eyes."

I hate judging around or being judged!
Because, if you judge people, you have no time to love them.
Because, when you judge someone, you allow others to judge you back.
Because, judgments always prevent us from seeing the good that lies beyond appearances.

We can never judge the lives of others until we have lived it. Every individual has his own motive to every action he does and this motive could be entirely different than mine. Paulo Coelho was absolutely right when he said that we can never judge the life of others, because each person knows only their  pain and renunciation. Truly, it's one thing to feel that you are on the right path, but it's another to think that yours is the only path.
Before every judgement, think, think and again think. There might have been numerous times when you would have failed to judge the content of the "book" by it's cover. It was only 'flipping through the pages' that made difference. What might have looked a deep tunnel could have turned to be an entry to a wonderland.
If you care for someone and justify it as your attitude remember the words, "Care hard and judge soft". I think one should first take care of their own lives. As the bible says, "For in the same way you judge others, you will be judged, and with the measure you use, it will be measured to you. Why do you look at the speck of sawdust in your brother's eye and pay no attention to the plank in your own eye? How can you say to your brother, ‘Let me take the speck out of your eye’ when all the time there is a plank in your own eye? You hypocrite, first take the plank out of your own eye, and then you will see clearly to remove the speck from your brother's eye." Even Jesus condemns hypocritical, self-righteous judgments.
Everything that irritates us about others shall lead us to an understanding of ourselves. Do your best, outshine and do not worry about people around. Let them fall stand and walk on their own! Let peace prevail. This world is full of judges, we don’t need any more. But then what do we need? Hearts oozing with love, hands willing to help; mouths praying and eyes caring. Let us be open hearted, warm people who won't (hypocritically) find mistakes in what others do and feel as though everyone else is wrong. Let us not judge someone else for a crime when you yourself are committing a crime that is even worse. Let us be souls with unconditional love without judgement and criticism. Let's have kind hearts, open hands and soft words. Let's dare not look down on anybody, unless we are going to help them up! ;-)