The right to happiness is fundamental.
To follow, without halt, one aim: that's the secret of success.
When a small child, I thought that success spelled happiness. I was wrong, happiness is like a butterfly which appears and delights us for one brief moment, but soon flits away.
Success depends in a very large measure upon individual initiative and exertion, and cannot be achieved except by a dint of hard work.
What exactly is success? For me it is to be found not in applause, but in the satisfaction of feeling that one is realizing one's ideal.