Human Happiness Seems To Consist In Three

We Have No Other Notion Of Cause And Effect, But That Of Certain Objects, Which Have Always Conjoin'd Together, And Which In All Past Instances Have Been Found Inseparable. We Cannot Penetrate Into The Reason Of The Conjunction. We Only Observe The Thing Itself, And Always Find That From The Constant Conjunction The Objects Acquire An Union In The Imagination.

Nothing Can Be More Real, Or Concern Us More, Than Our Own Sentiments Of Pleasure And Uneasiness; And If These Be Favourable To Virtue And Unfavourable To Vice, No More Can Be Requisite To The Regulation Of Our Conduct And Behavior.

...virtue Is Attended By More Peace Of Mind Than Vice, And Meets With A More Favourable Reception From The World. I Am Sensible, That, According To The Past Experience Of Mankind, Friendship Is The Chief Joy Of Human Life And Moderation The Only Source Of Tranquillity And Happiness.

Apart From The Representational Content Of An Idea There Is Another Component: Its Force And Vivacity, Its Impetus.

Of All Sciences There Is None Where First Appearances Are More Deceitful Than In Politics.