It's one thing thinking something and another thing knowing it.
Many people see happiness only in their future.
People fall in love more easily when they are already troubled by another emotion because we know that any intense emotional state greatly increases the risk of falling in love.
Making comparisons can spoil your happiness.
The basic mistake people make is to think that happiness is the goal!
Lesson no. 17: Happiness is caring about the happiness of those you love.