Do what you wish to others.
Don't do what you not wish done to yourself to others.
Which one is a more reasonable proposition?
They two seem similar but are totally different.
The former is wishing others to do what you have found good.
It seems like sharing the good experience with kind intention.
But we have to think again 'what was good for you is also good for others.'
The latter is not wishing and not recommending to others what you dislike.
It may seem more passive than the letter, but it prevents you from making mistakes of forcing your subjective judgment to others.
We, those who practice martial arts, need to think if we judge other martial arts from the former perspective.
We should be careful not to belittle and degrade other martial arts with the thought of mine being the best.
It is also important in our daily life.
Knowing what is good for you is not the same for others.
Not doing what you don't want to be done to yourself to others.
It seems like a little thing but very reasonable.
Let me end this with a talk between Confucius(孔子), one of the greatest teachers of Asia, and his disciple, Zi Gong(子貢).
Zi Gong(子貢) asked, "Is there one word which may serve as a rule of practice for all one's life?"
Confucius, Kongzi(孔子) said, "It is Reciprocity(恕)! What you do not want done to yourself, do not do to others."
-[the Analect of Confucius(論語) - Wei Ling Gong(Duke Ling of Wei) (衛靈公)]