“It turns out that freedom – the ability to make up your mind and change your mind – is the friend of natural happiness, because it allows you to choose among all those delicious futures and find the one that you would most enjoy.” (Dan Gilbert)
“Success in its highest and noblest form calls for peace of mind and enjoyment and happiness which come only to the man who has found the work that he likes best.” (Napoleon Hill)
“Enjoyment appears at the boundary between boredom and anxiety, when the challenges are just balanced with the person’s capacity to act.” (Mihaly Csikszentmihalyi)