The most reliable predictor of not being lonely is the amount of contact with women. Time spent with men doesn't make a difference.
Gretchen RubinOne of the findings that really interests me is that, although we think we ACT because of the way we FEEL, we often FEEL because of the way we ACT. So an almost uncanny way to change your feelings is to act the way you WISH you felt.
Gretchen RubinYour unhappiness doesn't help anyone else - and in fact, as I mentioned in another answer, happy people are more altruistically inclined. So happiness is not a selfish goal.
Gretchen RubinGet enough exercise and sleep: Sounds trivial, but it's not. You may have the urge to work 24/7, to skip the gym and to stay up late to get a few more things done. That's short-sighted. Exercise and sleep are critical to having the physical and mental energy necessary to meet a challenge.
Gretchen Rubin