From 21st Century Science and Health:

If you think weather affects health poorly, your Mind-remedy is safe and sure. If you are a scientist of Spirit, symptoms of sickness are not apt to follow exposure to certain weather. However, if you believe in laws of mortality and their fatal effects when transgressed, you are not fit to conduct your own case or to destroy the bad effects of what you believe. But you can pierce the façade of false laws. Your fear of weather subsides when you learn that people stay indoors during the cold weather, and pass around their local strains of illness. Now, reduce the fear of contagion and gain the spiritual conviction that you have broken no law, whether you go outdoors or stay inside. In Science, this is an established fact which all the evidence before the fleshly senses can never overrule.

Ecclesiastes 11:4 [Full Chapter]