1/ It is essential to develop a positive mentality. Sometimes referred to as positive attitude, optimistic mindset or (sound) mindfulness, a positive mentality enables us to live a rich and healthy emotional, intellectual and spiritual life. You may be introvert or extrovert, poor or rich, young or old, but you can always make conscious effort to become positive-minded.
2/ It is important to live in harmony with nature. In practice, this means to follow the way of nature or imitate nature (道法自然), as Lao Zi taught us in his Tao Te Ching. For example, acupuncture, physical exercise and organic/food therapies are more natural than surgery industrial/chemical compounds when it comes to deal with health problems.
3/ It is always advisable to maintain various living balances than otherwise. Such balance can and should be maintained at different levels and in various aspects of life, as between work and play, between activity and stasis, between yin and yang, between control and indulgence. Any overly emphasis on one would break the natural equilibrium with the other.
4/ It is always better to prevent than cure. This principle seemed to become increasingly popular in the world only in recent decades, but has been emphasized and practised especially by Daoist practitioners and traditional Chinese doctors for more than two thousand years.
Needless to say, one can write a pamphlet or even a thick book on each of these principles, but theories are always less interesting, so we post them here briefly just for casual discussion or future elaboration.