It's one thing thinking something and another thing knowing it.
Lesson no. 17: Happiness is caring about the happiness of those you love.
You must be careful when you ask people whether they’re happy; it’s a question that can upset them a great deal.
The basic mistake people make is to think that happiness is the goal!
Be vary wary of people who declare that they're going to create heaven on earth, they almost invariably create hell.
Sometimes happiness is not knowing the whole story.