Here is scientific proof that pleasure is the greatest thing a human being can have. In this video, from 4:20-5:01 you hear the speech from Robert Sapolsky that proves this. He says that depression is the worst thing and backs it up. Therefore, since depression is the worst thing, that obviously means pleasure is the best thing above any other part of you (such as intelligence or anything else) and that losing anything else in life would hardly compare.
Here is the video:
https://www.youtube.com/watch?v=NOAgplgTxfc
Here is the video:
https://www.youtube.com/watch?v=NOAgplgTxfc