Physiology Has, At Last, Gained Control Over

Edible Substances Evoke The Secretion Of Thick, Concentrated Saliva. Why? The Answer, Obviously, Is That This Enables The Mass Of Food To Pass Smoothly Through The Tube Leading From The Mouth Into The Stomach.

Perfect As The Wing Of A Bird May Be, It Will Never Enable The Bird To Fly If Unsupported By The Air. Facts Are The Air Of Science. Without Them A Man Of Science Can Never Rise.

Never Think That You Already Know All. However Highly You Are Appraised, Always Have The Courage To Say To Yourself-i Am Ignorant.

Perfect As The Wing Of A Bird May Be, It Will Never Enable The Bird To Fly.

If We Could Look Through The Skull Into The Brain Of A Consciously Thinking Person, And If The Place Of Optimal Excitability Were Luminous, Then We Should See Playing Over The Cerebral Surface, A Bright Spot With Fantastic, Waving Borders Constantly Fluctuating In Size And Form, Surrounded By A Darkness More Or Less Deep, Covering The Rest Of The Hemisphere.