It is the unqualified result of all my experience with the sick that, second only to their need of fresh air, is their need of light; that, after a close room, what hurts them most is a dark room and that it is not only light but direct sunlight they want.

It is very well to say "be prudent, be careful, try to know each other." But how are you to know each other?

I never lose an opportunity of urging a practical beginning, however small...

I attribute my success to this - I never gave or took any excuse.

I stand at the altar of murdered men, and, while I live, I fight their cause.

The craving for 'the return of the day', which the sick so constantly evince, is generally nothing but the desire for light.

We know nothing of the principle of health, the positive of which pathology is the negative, except from observation and experience. Nothing but observation and experience will teach us the ways to maintain or to bring back the state of health. It is often thought that medicine is the curative process. It is no such thing; medicine is the surgery of functions as surgery proper is that of limbs and organs.