1·The aesthetic of uselessness, leisure, and adornment has taken over as part of a larger overwhelming urge to appear "modern" and sophisticated.
无用、休闲、装饰的美学观占据了主导，并一举汇入了现在力求“现代”、高端的强大思潮中。
2·But there are other questions to be considered, and in particular that of the 'utility' (or uselessness) of mathematics, about which there is much confusion of thought.
但还有一些其他问题需要商榷，特别是数学的“实用性”(或无用性)，关于这一点思想上有很多混淆之处。
3·Well, uselessness can be turned into usefulness.
可以化无用为有用。
4·Chuang Tzu sensed that they would fall into quarrel if the argument went on, so he diverted the topic to quit the argument about usefulness and uselessness.
庄子知道再辩下去两人就要翻脸了，于是将话题岔开，结束了这场有用与无用的辩论。
5·It's gonna be that feeling of uselessness when you can't do anything.
这将会是无用的感觉时，你不能做任何事。