The religions of the world, the prophets and mystics who existed ages ago knew these things. Today a man comes with a little photographic plate and says: "Here I have a photograph of sound; that shows how important is vibration and its action upon the plate." He does not know that this is something which has always been known, and has been spoken of by those who knew it - but in spiritual terms. Therefore man does not think about what was spoken of in the past; he thinks that what is being spoken of today is something new. But when we realize that - as Solomon has said - there is nothing new under the sun, we begin to enjoy life seeing how, time after time, the same wisdom is revealed to man. The one who seeks through science, the one who searches through religion, the one who finds it through philosophy, the one who finds it through mysticism - in whatever manner they seek the truth, they find it in the end.