"Is it easier said than done?" Yes I think that it is true, a lot of people will advise you how to do something, but it doesn't mean that they actually know how to do it themselves.

Hi... yes I think it is true...

yeah, say something is by mouth but do something is by your hands and head everyone could say but not all of people can do

So many things are easier said than done! Or maybe I don't understand your question well;)

Do you have a doubt about it? In my country we use this expression: "A las palabras se las lleva el viento."