True Science Teaches Us To Doubt And,

But While I Accept Specialization In The Practice, I Reject It Utterly In The Theory Of Science.

Effects Vary With The Conditions Which Bring Them To Pass, But Laws Do Not Vary. Physiological And Pathological States Are Ruled By The Same Forces; They Differ Only Because Of The Special Conditions Under Which The Vital Laws Manifest Themselves.

Feeling Alone Guides The Mind.

Well-observed Facts, Though Brought To Light By Passing Theories, Will Never Die; They Are The Material On Which Alone The House Of Science Will At Last Be Built.

Our Ideas Are Only Intellectual Instruments Which We Use To Break Into Phenomena; We Must Change Them When They Have Served Their Purpose, As We Change A Blunt Lancet That We Have Used Long Enough.