Psychological aspects Success 135 Leadership 64 Self-actualization (Psychology) 41 Psychology 37 Terrorism 29 Success in business 26 War 24 Combat 21 Work 20 Social aspects 19 Management 17 Motivation (Psychology) 15 Thesis 15 History 14 Interpersonal relations 14 Sports 13 Conduct of life 12 Emotional intelligence 12 Prevention 12 Religious aspects 12 Character 11 Post-traumatic stress disorder 11 Islam 10 Psychology, Military 10 Study and teaching 10 Case studies 9 Dissertations, Academic 9 Executive ability 9 Self-confidence 9