A man who cannot work without his hypodermic needle is a poor doctor. The amount of narcotic you use is inversely proportional to your skill.

A doctor must work eighteen hours a day and seven days a week. If you cannot console yourself to this, get out of the profession.

When a man lacks mental balance in pneumonia he is said to be delirious. When he lacks mental balance without the pneumonia, he is pronounced insane by all smart doctors.

You must learn to talk clearly. The jargon of scientific terminology which rolls off your tongues is mental garbage.

A man cannot be comfortable without his own approval.

Man, became man through work, who stepped out of the animal kingdom as transformer of the natural into the artificial, who became therefore the magician, man the creator of social reality, will always stay the great magician, will always be Prometheus...