2 Nephi 28

When it comes to modern revelation, Nephi warns -

"Wo be unto him that shall say: We have received the word of God, and we need no more of the word of God, for we have enough!"  (2 Nephi 28:29)

I believe this can also refer to general conference and personal revelation.  The Lord explains -

"For behold, thus saith the Lord God: I will give unto the children of men line upon line, precept upon precept, here a little and there a little; and blessed are those who hearken unto my precepts, and lend an ear unto my counsel, for they shall learn wisdom; for unto him that receiveth I will give more; and from them that shall say, We have enough, from them shall be taken away even that which they have."  (2 Nephi 28:30)

Is it any wonder the Prophet has encouraged us to seek and experience the Holy Ghost.