In Nature Nothing Can Be Given. All

I Look On Trade And Every Mechanical Craft As Education Also. But Let Me Discriminate What Is Precious Herein. There Is In Each Ofthese Works An Act Of Invention, An Intellectual Step, Or Short Series Of Steps Taken; That Act Or Step Is The Spiritual Act; All The Rest Is Mere Repetition Of The Same A Thousand Times.

A Rush Of Thoughts Is The Only Conceivable Prosperity That Can Come To Us.

The Value Of A Principle Is The Number Of Things It Will Explain.

The Aid We Can Give Each Other Is Only Incidental, Lateral, And Sympathetic.

Nature Encourages No Looseness; Pardons No Errors.