Life is not easy for any of us. But what of that? We must have perseverance and above all confidence in ourselves. We must believe that we are gifted for something and that this thing must be attained. – Marie Curie
Every now and then go away and have a little relaxation. To remain constantly at work will diminish your judgment. Go some distance away, because work will be in perspective and a lack of harmony is more readily seen. – Leonardo DaVinci
