Right... This may have been of interest and gone "viral" 150 years ago, but I fail to see how it's of much interest today...
That some of the advice is still relevant is hardly surprising. After all, human nature has changed very little over the last few thousand years...
Perhaps I'm reading too much into it. I guess that's the problem with this sort of vague generalised advice :)
And then you go to someplace like Vegas and see people playing in some kinds of games and losing it all. One example of how it can be of interest today.
Or you see young people be X times more productive than another, because they don't waste their time playing some BS console game. Another example.
(Except for people who always assume the will be the exception -- Vegas is full of them also).
Don't be devious and underhanded, be genuine.