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.

To understand God's thoughts, one must study statistics, for these are the measure of His purpose.

Woman has nothing but her affections,--and this makes her at once more loving and less loved.

Statistics is the most important science in the whole world: for upon it depends the practical application of every other science and of every art: the one science essential to all political and social administration, all education, all organization based on experience, for it only gives results of our experience.

The great reformers of the world turn into the great misanthropists, if circumstances or organization do not permit them to act.

The most important practical lesson than can be given to nurses is to teach them what to observe.

Averages ... seduce us away from minute observation.