I recently learned and wrote about ( TftD ) a Chazal (Brachos 21a) that apparently says straight out that there is no pleasure/enjoyment/ הנאה from learning Torah. I was surprised, but I gave it some thought and felt I had a good way to understand that Chazal. While discussing it with a member of the kollel, however, he pointed me to the introduction to the אגלי טל, who discusses the concept of "mitzvos were not given for our enjoyment." Long story short, the אגלי טל discusses in the introduction why the Rambam says that learning Torah for the wrong reasons will bring you to learning Torah for the right reasons, whereas doing miztvos for the wrong reasons won't bring you anywhere. Basically, the Rambam is of the opinion that in order to actually fulfill a mitzvah, it must be done with that intent. Since mitzvos were not given for our enjoyment, doing the mitzvah for any purpose other than fulfilling the mitzvah -- ie, for some side benefit -- is automatically not a fulfi...
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 :)