Don Marquis - Happiness is the interval between periods of unhappiness.

Baruch Spinoza - All happiness or unhappiness solely depends upon the quality of the object to which we are attached by love.

Leslie Caron - In order to have great happiness you have to have great pain and unhappiness - otherwise how would you know when you're happy?

Marquis de Sade - Happiness is ideal, it is the work of the imagination.

Don Marquis - When a man tells you that he got rich through hard work, ask him: 'Whose?'

Ron Chernow - I have developed a very strong partiality for the dead: they don't talk back, they don't sue, and they don't have angry relatives.

Oliver Goldsmith - Friendship is a disinterested commerce between equals; love, an abject intercourse between tyrants and slaves.

Chaz Bono - Gender is between your ears and not between your legs.

Frank Ocean - I believe that marriage isn’t between a man and a woman; but between love and love.

Gene Wilder - When I'm not working on something, I seem to go through periods of depression. It helps to keep busy.

Marquis de Lafayette - Humanity has won its battle. Liberty now has a country.

Albert Camus - But what is happiness except the simple harmony between a man and the life he leads?

Salvador Plascencia - I don’t know what they are called, the spaces between seconds – but I think of you always in those intervals.

Albert Schweitzer - Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

George Burns - Happiness? A good cigar, a good meal, a good cigar and a good woman - or a bad woman; it depends on how much happiness you can handle.

F. H. Bradley - The secret of happiness is to admire without desiring. And that is not happiness.