We Must Plan For Freedom, And Not

No Number Of Sightings Of White Swans Can Prove The Theory That All Swans Are White. The Sighting Of Just One Black One May Disprove It.

Definitions.... Are Never Really Needed, And Rarely Of Any Use

What Really Makes Science Grow Is New Ideas, Including False Ideas.

The Fundamental Thing About Human Languages Is That They Can And Should Be Used To Describe Something; And This Something Is, Somehow, The World. To Be Constantly And Almost Exclusively Interested In The Medium - In Spectacle-cleaning - Is A Result Of A Philosophical Mistake.

Do Not Allow Your Dreams Of A Beautiful World To Lure You Away From The Claims Of Men Who Suffer Here And Now. Our Fellow Men Have A Claim To Our Help; No Generation Must Be Sacrificed For The Sake Of Future Generations.