No one should ever ask themselves that: why am I unhappy? The question carries within it the virus that will destroy everything. If we ask that question, it means we want to find out what makes us happy. If what makes us happy is different from what we have now, then we must either change once and for all or stay as we are, feeling even more unhappy.
Paulo CoelhoNever looking anyone in the eye when you're traveling on public transport, in case it's interpreted as a sign that you're trying to get off with them.
Paulo Coelho