Two that go together from Karen Glass in Consider This.
"The proper nourishment for a living mind -- the only thing which will allow the mind to reach its full potential is a diet of ideas ... appetizing and varied ..." pg 69
"Everything that a person learns becomes a part of himself, and as his character is formed, he recognizes that he is made up of those experiences he has had, the people he has met, the books he has read, and the things he has thought." pg 73
Sorry for the tardy posting. Looking forward to seeing what you've been reading.