Even in such technical lines as engineering, about 15% of one's financial success is due one's technical knowledge and about 85% is due to skill in human engineering, to personality and the ability to lead people.
Dale CarnegieInstead of worrying about what people say of you, why not spend time trying to accomplish something they will admire.
Dale CarnegieHistory has repeatedly been changed by people who had the desire and the ability to transfer their convictions and emotions to their listeners.
Dale CarnegieOne of the worst features about worrying is that it destroys our ability to concentrate. When we worry, our minds jump here and there and everywhere, and we lose all power of decision. However, when we force ourselves to face the worst and accept it mentally, we then eliminate all those vague imaginings and put ourselves in a position in which we are able to concentrate on our problem.
Dale Carnegie