To Have Doubted One's Own

From Forty To Fifty A Man Must Move Upward, Or The Natural Falling Off In The Vigor Of Life Will Carry Him Rapidly Downward.

Even For Practical Purposes Theory Generally Turns Out The Most Important Thing In The End.

Life, Not The Parson, Teaches Conduct.

To Be Master Of Any Branch Of Knowledge, You Must Master Those Which Lie Next To It, And Thus To Know Anything You Must Know All.

As For The Excellent Little Wretches Who Grow Up In What They Are Taught, With Never A Scruple Or A Query, ... They Signify Nothing In The Intellectual Life Of The Race.