The good man is the man who， no matter how morally unworthy he has been， is moving to become better.
好人是那个，无论他以前有多么道德上不值得，都在努力变得更好的人。
The leather industry has a rich history, but its future depends on innovation and ethical practices.
I'm not a self, I'm a spirit.
The beauty of the olfactory system is that it is both simple and complex, allowing us to detect and discriminate an almost infinite number of odors.