Logic Is An Old Subject, And Since

Set Theory In Sheep's Clothing.

Logic Is An Old Subject, And Since 1879 It Has Been A Great One.

The Scientist Is Indistinguishable From The Common Man In His Sense Of Evidence, Except That The Scientist Is More Careful.

Science Is Not A Substitute For Common Sense, But An Extension Of It.

To Call A Posit A Posit Is Not To Patronize It. A Posit Can Be Unavoidable Except At The Cost Of Other No Less Artificial Expedients. Everything To Which We Concede Existence Is A Posit From The Standpoint Of A Description Of The Theory-building Process, And Simultaneously Real From The Standpoint Of The Theory That Is Being Built.