There are thousands of spoken languages in this world, but when you see droplets of tears in some eyes, it speaks of one word of 'agony'; and if you see a smile on the face of a person, it speaks all the languages, and there is only one word of expression of 'contentment'.
This is in human nature.
***
I recall here the motto of Chinmaya Mission: To give maximum happiness to maximum number of people for maximum time.
***
What a universal thought and humanitarian principle!
*****