The Eye That Directs A Needle In

I Made Observations For Three Hours Last Night, And Am Almost Ill Today From Fatigue; Still I Have Worked All Day, Trying To Reduce The Places, And Mean To Work Hard Again Tonight.

That Knowledge Which Is Popular Is Not Scientific.

The World Of Learning Is So Broad, And The Human Soul Is So Limited In Power! We Reach Forth And Strain Every Nerve, But We Seize Only A Bit Of The Curtain That Hides The Infinite From Us.

To Read A Book, To Think It Over, And To Write Out Notes Is A Useful Exercise; A Book Which Will Not Repay Some Hard Thought Is Not Worth Publishing.

People Have To Learn Sometimes Not Only How Much The Heart, But How Much The Head, Can Bear.