To study the phenomenon of disease without books is to sail an uncharted sea, while to study books without patients is not to go to sea at all.
Shut out all of your past except that which will help you weather your tomorrows.
That man can interrogate as well as observe nature was a lesson slowly learned in his evolution.
One of the first duties of the physician is to educate the masses not to take medicine.
Look wise, say nothing, and grunt. Speech was given to conceal thought.
The desire to take medicine is perhaps the greatest feature which distinguishes man from animals.
The greater the ignorance the greater the dogmatism.
Live neither in the past nor in the future, but let each day's work absorb your entire energies, and satisfy your widest ambition.
In science the credit goes to the man who convinces the world, not to the man to whom the idea first occurs.