I believe Doctor Ben Carson is forever right, in his book, One Nation, he recommended HISTORY as one of the keys to a lovely future, of course, the book centred on the United States. I recommend history, first of all. In every subject, course or group, the history of each course must be the first thing to deal, even before definition ... for definition can trick us into discussion through explanations of salient words.
Then, we can include, must include any Philosophy of morality and peace.
The history of Mathematics is very important. Each topic has origin too. And religion and nations hAve their.
If you don't know history of any thing, remain a learner; we're all learning ever though; but those lacking in history of a thing should not comment or judge.
Sentiment#&passion are not enough.