Your article heading as "Let us be True to one another" published in the A.B. Patrika (Allahabad Edition) D/30.12.51 attracted my attention and I read it over and over again. This article contains the nucleus of future activities of the human society in the spiritual realm and I have read in your statement about your deep thought on the onward march of human civilization. You have rightly said the following words in this connection viz.
"So we search for new ways, new aspects of the truth more in harmony with our environment. And we question each other and debate and quarrel and evolve any number of 'isms' and philosophies. As in the days of Socrates, we live in an age of questioning, but the questioning is not confined to a city like Athens: it is worldwide".
There are two ways of answering such questions, I mean the deductive way and inductive way. Mortality of man is established by either of the above ways. In deductive way we take it for granted from reliable source, "Man is Mortal." But in the inductive way we approach the same truth by our poor reasoning of "observation and experiment." By observation we can see that Gandhi dies, Fotilal dies, C.R. Das dies, Patel dies and therefore we conclude that man dies or, "Man is Mortal". Then again in the same deductive way when we reason that man is mortal, and find that Jawaharlal is a man and thus conclude that Jawaharlal is mortal.