Elon Musk shows the world how big, audacious goals can be achieved by dividing them into smaller milestones and embracing failure and negative feedback.

His goals are not something he is doing for the media circus, but something in which he is emotionally committed. Go...

• Anger: An emotion felt when we believe we have been wronged.
• Aggression: is an act of expression of the anger, by our words our actions. Aggression can be insults, sarcasm, shouting or physical forms like breaking things. It can also manifest itself ...

Aggressiveness is often an impulse. An aggressive person responds in a hostile or inconsiderate manner and often regrets doing so later. 

By contrast, assertiveness is planned, thoughtful, and considerate. An assertive person communicates his or her positio...