Suppose I asked you if you believed in atoms. You would probably look at me like I was from another planet and wonder what I was up to. (Fair enough... I'm usually up to something when I ask a question like that.) Still, you would likely play along and answer in the affirmative. What if I then asked you for evidence you have for that belief, being as neither you nor anyone else has ever or will ever actually see an atom? ("Aha!", you think, "I knew he was up to no good!") Now suppose I were to ask you if you believe that stealing is morally wrong. Same eye rolling on your part, again deciding to play along and answer in the affirmative. This time when I ask you for your evidence, however, your answer is, "I don't need evidence; it is logical that taking something that belongs to someone else is morally wrong." Now we can begin. There is a strange discussion in the gemara (Brachos 35a) (my free translation): Fact 1: It is forbidden to...
This is a paraphrase of the pasuk in t'hillim 84:7 -- "mei'chayil el chayil" -- which means "from strength to strength". In this case, it is my thoughts and ideas to those who are strong enough to be interested :)