I have been very happy, very rich, very beautiful much adulated, very famous and very unhappy

If you deliberately set out to be less than you are capable, you'll be unhappy for the rest of your life.

It isn't what you have, or who you are, or where you are, or what you are doing that makes you happy or unhappy. It is what you think about.

It's better to be unhappy alone than unhappy with someone.

Rashness is the faithful, but unhappy parent of misfortune.

The best remedy for those who are afraid, lonely or unhappy is to go outside, somewhere where they can be quiet, alone with the heavens, nature and God. Because only then does one feel that all is as it should be.

The trouble is that people seem to expect happiness in life. I can't imagine why; but they do. They are unhappy before they marry, and they imagine to themselves that the reason of their unhappiness will be removed when they are married. When it isn't they blame the other person, which is clearly absurd. I believe that is what generally starts the trouble.

Your most unhappy customers are your greatest source of learning.