Sorrow and happiness are the heresies of virtue; joy and anger lead astray from TAO; love and hate cause loss of virtue. The heart unconscious of sorrow and happiness - that is perfect virtue. One, without change - that is perfect repose. Without any obstruction - that is the perfection of the unconditioned. Holding no relations with the external world, - that is perfection of the negative state. Without blemish of any kind, - that is the perfection of purity.
ZhuangziThere may be difficulty at the moment, but I will not lose the Virtue that I possess. It is when the ice and snow are on them that we see the strength of the cypress and the pine. I am grateful for this trouble around me, because it gives me an opportunity to realize how fortunate I am.
ZhuangziThe birth of a man is the birth of his sorrow. The longer he lives, the more stupid he becomes, because his anxiety to avoid unavoidable death becomes more and more acute. What bitterness! He lives for what is always out of reach! His thirst for survival in the future makes him incapable of living in the present.
ZhuangziBeing is thoughtless-beyond and beneath all categories of thought. Expression is the realization of creative thought. Being is still; expression, moving. But then if I do not strive, who will?
ZhuangziOnly the intelligent knows how to identify all things as one. . . . When one is at ease with himself, one is near Tao. This is to let Nature take its own course.
ZhuangziThe mind remains undetermined in the great Void. Here the highest knowledge is unbounded. That which gives things their thusness cannot be delimited by things. So when we speak of 'limits', we remain confined to limited things. The limit of the unlimited is called 'fullness.' The limitlessness of the limited is called 'emptiness.' Tao is the source of both. But it is itself neither fullness nor emptiness
Zhuangzi