Observe how easily the day would pass if you were able to move freely without being affected by the negative attitude of others. Imagine how much you can accomplish if you were able to remain constantly in a calm and peaceful state rather than fluctuating up one minute then down the next. Every time you lose happiness and go down, just see how much energy is needed to take yourself up again. If you learn to remain constant, not only is energy saved but you will find that your mental strength increases and of course with mental strength and stability come the development and maturity of character. Strength of character depends upon my ability to remain unaffected by adverse circumstances.
~ Brahma Kumaris, Mt Abu.