Medicine Heals Doubts As Well As Diseases.

Change The Economic Base And You Will Change Human Beings.

Scientific Truth Is Always Paradox, If Judged By Everyday Experience, Which Catches Only The Delusive Appearance Of Things.

There Is No Royal Road To Science, And Only Those Who Do Not Dread The Fatiguing Climb Of Its Steep Paths Have A Chance Of Gaining Its Luminous Summits. (preface To The French Edition).

There Must Be Something Rotten In The Very Core Of A Social System Which Increases Its Wealth Without Diminishing Its Misery

Religion Is The Opiate Of The People.