Vanity Is A Motive Of Immense Potency.

One Of The Most Powerful Of All Our Passions Is The Desire To Be Admired And Respected.

I Do Not Pretend To Start With Precise Questions. I Do Not Think You Can Start With Anything Precise. You Have To Achieve Such Precision As You Can, As You Go Along.

Without Effort And Change, Human Life Cannot Remain Good. It Is Not A Finished Utopia That We Ought To Desire, But A World Where Imagination And Hope Are Alive And Active.

There Is Much Pleasure To Be Gained From Useless Knowledge.

A Happy Life Must Be To A Great Extent A Quiet Life, For It Is Only In An Atmosphere Of Quiet That True Joy Dare Live.