This quote by Israel Zangwill speaks to the concept that change is a consistent in life. It suggests that while everything around us is constantly changing, the concept of modification itself stays the very same. This quote can be translated in a few various ways. On one hand, it could be seen as a reminder that change is inescapable which we need to accept it and welcome it. On the other hand, it could be viewed as a warning that we ought to beware not to get too comfortable with the status quo, as it is always subject to change.
The quote also speaks with the concept that modification can be both positive and unfavorable. While some changes can be helpful, others can be tough to adapt to. It is important to bear in mind that modification is a natural part of life which it can bring both excellent and bad.
In general, this quote is a reminder that change belongs of life which it should be accepted. It is important to bear in mind that while whatever modifications, the idea of modification itself stays the very same. We need to be open to change and accept it as a part of life.