When Conscious Activity Is Wholly Concentrated On

In Science The Successors Stand Upon The Shoulders Of Their Predecessors; Where One Man Of Supreme Genius Has Invented A Method, A Thousand Lesser Men Can Apply It. ... In Art Nothing Worth Doing Can Be Done Without Genius; In Science Even A Very Moderate Capacity Can Contribute To A Supreme Achievement.

Mathematics May Be Defined As The Subject In Which We Never Know What We Are Talking About, Nor Whether What We Are Saying Is True.

I Went To Salt Lake City And The Mormons Tried To Convert Me, But When I Found They Forbade Tea And Tobacco I Thought It Was No Religion For Me.

Civilized People Cannot Fully Satisfy Their Sexual Instinct Without Love.

Envy, In Fact, Is One Form Of A Vice, Partly Moral, Partly Intellectual, Which Consists In Seeing Things Never In Themselves, But Only In Their Relations.