Self satisfaction alone cannot determine if a desire or action is positive or negative. The demarcation between a positive and a negative desire or action is not whether it gives you a immediate feeling of satisfaction, but whether it ultimately results in positive or negative consequences.
Terrorist attacks can shake the foundations of our biggest buildings, but they cannot touch the foundation of America. These acts shatter steel, but they cannot dent the steel of American resolve.
Because one believes in oneself, one doesn't try to convince. Because one is content with oneself, one doesn't need others' approval. Because one accepts oneself, the whole world accepts him or her.
Have courage for the great sorrows of life and patience for the small ones; and when you have laboriously accomplished your daily task, go to sleep in peace.