Our character is a combined efforts of our thoughts. If our majority of thoughts are Good,
then our overall character will be like an Angle and if most of our thoughts are Bad, then it will be like Devil. Most of us are in between these two extremes.
Everyone gets thousands of thoughts in his life and on Good-Bad measurement scale it varies. At any point of time a person character is Sum Total of all your Thoughts. This also confirms that a person character can change with time, if he changes his thoughts.
There is nothing by chance. A Nobel character or a Notorious character is a result of right or wrong thinking.