“I only invoked what you already knew.”
“The government to you is what God is to agnostics--only to be invoked when your own well being is at stake.”
“In this case, consulting the dictionary would simply mean discovering what one already knew, Dictionaries only provide information that is likely to be useful to everyone”
“What good would learning be if we concentrated on what we already knew? It is only by learning those things that come to us with difficulty that we truly gain wisdom.”
“Madness is only an amplification of what you already are.”
“I am only bound to invoke Memory where I know her responses will possess some degree of interest.”