Whoever commits to paper what he suffers becomes a melancholy author: but he becomes a serious author when he tells us what he suffered and why he now reposes in joy.
Just know what is happening in your mind - not happy or sad about it, not attached. If you suffer see it, know it, and be empty. It's like a letter - you have to open it before you can know what's in it.
Hitler suffered acutely from meteorism; perhaps he did not suffer so acutely as those around him, since meteorism is uncontrolled farting, a condition exacerbated by Hitler's strictly vegetarian diet.
Whether we like it or not, we have all been born into this world as part of one great human family. Rich or poor, educated or uneducated, belonging to one nation or another, to one religion or another, adhering to this ideology or that, ultimately each of is just a human being like everyone else. We all desire happiness and do not want suffering.