A person can make himself happy, or miserable, regardless of what is actually happening 'outside,' just by changing the contents of consciousness.
Mihaly CsikszentmihalyiAs long as we respond predictably to what feels good and what feels bad, it is easy for others to exploit our preferences for their own ends.
Mihaly CsikszentmihalyiBut it is impossible to enjoy a tennis game, a book, or a conversation unless attention is fully concentrated on the activity.
Mihaly CsikszentmihalyiIt is not the skills we actually have that determine how we feel but the ones we think we have.
Mihaly Csikszentmihalyi