Yes, you have to continuously improve, and also recognize that the things you learned before may no longer apply. Always know why you have to do the things you do and when that isn't true anymore.
Also I didn't understand half of what you said.
Also I didn't understand half of what you said.
You also have to learn when the things you learned before do apply. This is important because technology is cyclic. There are a constant stream of fads that many of the less experienced engineers won't be able to see alternatives to.