Orthodoxy Is The Death Of Intelligence.

Man Has Existed For About A Million Years. He Has Possessed Writing For About 6,000 Years, Agriculture Somewhat Longer, But Perhaps Not Much Longer. Science, As A Dominant Factor In Determining The Belief Of Educated Men, Has Existed For About 300 Years; As A Source Of Economic Technique, For About 150 Years. In This Brief Period It Has Proved Itself An Incredibly Powerful Revolutionary Force. When We Consider How Recently It Has Risen To Power, We Find Ourselves Forced To Believe That We Are At The Very Beginning Of Its Work In Transforming Human Life.

While The Dogmatist Is Harmful, The Sceptic Is Useless ...; One Is Certain Of Knowing, The Other Of Not Knowing. What Philosophy Should Dissipate Is Certainty, Whether Of Knowledge Or Of Ignorance. Knowledge Is Not So Precise A Concept As Is Commonly Thought. Instead Of Saying 'i Know This', We Ought To Say 'i More Or Less Know Something More Or Less Like This'. ... Knowledge In Practical Affairs Has Not The Certainty Or The Precision Of Arithmetic.

A Man's Acts Are Partly Determined By Spontaneous Impulse, Partly By The Conscious And Unconscious Effects Of The Various Groups To Which He Belongs.

A Generation Educated In Fearless Freedom Will Have Wider And Bolder Hopes Than Are Possible To Us

Whether Science-and Indeed Civilization In General-can Long Survive Depends Upon Psychology, That Is To Say, It Depends Upon What Human Beings Desire.