The 'burden of proof' is on the plaintiff, since the defendant is presumed innocent until proven guilty. [=the plaintiff must prove that the defendant is guilty]
The 'tax burden' has been falling increasingly on the middle class. [=middle class people have been paying a greater portion of taxes]
For the rest of his life he 'was burdened' with the knowledge that he had done nothing to help them.
(..) doesn't sit well with some so they belittle me. - Seven blessings to you. - Seven blessings to you, my dear. It's only a name, quite an easy burden to wear. Far easier than hers. Why no shoes? Because I gave them away to someone who needed them more. We all do that. (..)2015 TvShow: Game of Thrones Title: High Sparrow Season: 5 Episode 3