"If there were in the world today any large number of people who desired their own happiness more than they desired the unhappiness of others, we could have paradise in a few years." - Bertrand Russell
"Happiness is always a by-product. It is probably a matter of temperament, and for anything I know it may be glandular. But it is not something that can be demanded from life, and if you are not happy you had better stop worrying about it and see what treasures you can pluck from your own brand of unhappiness." - Robertson Davies