我每天可以在不提到宣言的情况下过得很好。

I can get through each day without having to refer to a manifesto.

youdao

我可以一个人自娱自乐，也可以过得很好。

I can be a personal enjoyment, can also be very good.

youdao

并不是很重要，没有新发明我也可以过得很好。新发明只是使人们生活更多姿多彩，而并非非常有用和必要的，比如说微波炉。

Not really. I can live without it. It just makes people's life colorful. It is not so useful and necessary like microwave ovens.

youdao