Long ago, I read that Bhagat Singh was an atheist. Sometime later, I also got to know that it was a propaganda by the communists to attract the younger generation of India by cashing in the name of Bhagat Singh, one of the greatest Indian revolutionaries. He wrote in one of his jail diary notes why he was an atheist. An excerpt from his note:
''In God man can find very strong consolation and support. Without Him, man has to depend upon himself. To stand upon one's own legs amid storms and hurricanes is not child's play. At such testing moments, vanity, if any, evaporates, and man cannot dare to defy the general beliefs, if he does, then we must conclude that he has got certain other strength than mere vanity.
Let us see how I carry on: one friend asked me to pray. When informed of my atheism, he said, "During your last days you will begin to believe". I said, No, dear Sir, it shall not be. I will think that to be an act of degradation and demoralization on my part. For selfish motives I am not going to pray. Readers and friends, "Is this vanity"? If it is, I stand for it. "- भगत सिंह
There is another man who spoke and wrote like him and he was known all across the world for his faith, knowledge and confidence. His name was स्वामी विवेकानंदा and he spoke once in Chicago and that speech made him immortal and well--known all across the globe. Personally, I feel that the feeling you get while listening to his speech is just similar to the feeling which you get when you read Bhagat Singh's jail notes, particularly the Atheism related post.
There are controversies related to both the text and the video/speech. But the feeling is awesome, mind blowing and motivating.