Books Are Absent Teachers.

The Ability To Retain A Child's View Of The World With At The Same Time A Mature Understanding Of What It Means To Retain It, Is Extremely Rare - And A Person Who Has These Qualities Is Likely To Be Able To Contribute Something Really Important To Our Thinking.

... The Person Who, At Any Stage Of A Conversation, Disagrees, Should At Least Hope To Reach Agreement In The End. He Should Be As Much Prepared To Have His Own Mind Changed As Seek To Change The Mind Of Another ... No One Who Looks Upon Disagreement As An Occasion For Teaching Another Should Forget That It Is Also An Occasion For Being Taught.

A Lecture Has Been Well Described As The Process Whereby The Notes Of The Teacher Become The Notes Of The Student Without Passing Through The Mind Of Either.

Men Value Things In Three Ways: As Useful, As Pleasant Or Sources Of Pleasure, And As Excellent, Or As Intrinsically Admirable Or Honorable.

To Agree Without Understanding Is Inane. To Disagree Without Understanding Is Impudent.