We all know: the statement A = B equivalent to not A = not B, what we will have?
- OK! Start with "impossible is nothing", so, negatively: "possible is everything".
- Einstein once stated "everything is relative", thus we'll have "possible is relative".
- Then negatively, we will get "impossible is absolute".
* Conclusion: Einstein want to tell us: "Everything is absolutely impossible".
This is so-called "Don't try anything more theory", please update this to your knowledge base. Thanks!