From the experience of appreciating kallos,Zhuangzi raised "Tianlai" from which we realized "Kallos is either difficult or indifficult".
庄子从审美体验的角度,对"天籁"之美的描述,给我们以"美难而不难"的审美感受。
Kallos is Either Difficult or Indifficult--Zhuangzi "Tianlai" and Its Aesthetic Significance;
美难而不难对于美——庄子的“天籁”说及其美学意义
Don't hang back in the face of difficulties.
不要因为困难而却步。
Proud though in desolation,which could find A lift within itself,
孤掌难鸣而不失傲骨；
get despite difficulties or obstacles.
不顾困难或障碍而获得。
It is not helps but dificulties,not facilities but obstacles,that makes man.
造就人的不是帮助而是困难，不是便利而是磨难。
Thus, rules are hard not to be broken.
难怪，不逾矩很难。
They shrink from no task, however arduous it is.
不管工作如何艰难，他们都不会知难而退。
With some people, hardships do not hold them down, but money and beauty do.
就一些人而言，艰难困苦不会使他们屈服，但是金钱与美色却可以。
Notwithstanding ye have well done, that ye did communicate with my affliction.
14然而你们和我同受患难，原是美事。
However, the level of difficulty can differ greatly from one song to another.
然而，难度因歌曲的不同而相差甚远。
Timing, however, is notoriously difficult.
然而，时局的艰难已是不言而喻。
The main reason that over 90 percent of the American public struggles financially is because they play not to lose. They don't play to win.
90％的美国公众财务困难的主要原因就在于他们是为了避免损失而理财,而不是为了赢利而理财。
If soldiers are punished before they have grown attached to you, they will not prove submissive; and,unless submissive, then will be practically useless.
卒未亲附而罚之,则不服,不服则难用也。
Continue to be cheerful and play one's part despite difficulties
（不顾困难）仍乐观而尽本分，不泄气
But if the enemy is prepared for your coming, and you fail to defeat him, then, return Being impossible,disaster will ensue.
敌若有备,出而不胜,则难以返,不利。
"To acquire wealth is difficult, to preserve it more difficult, But to spend it wisely most difficult of all"
积财难,守财最难,而聪明地散财最难
Truth was the one virtue, which I might have held fast, and did hold fast, through all extremity;
诚实是我可以仅守的美德，而且不管有什么艰难险阻，我也确实牢牢守住了这一美德；
It sounded an excellent plan, no doubt, and very neatly and simply arranged; the only difficulty was, that she had not the smallest idea how to set about it;
听起来，这真是个卓越的计划，而且安排得美妙而简单，唯一的困难是她不知道怎样才能办成。