46. Swami Sivananda
"Nature tries to keep us healthy, but we bring on sickness by continuous violation of the laws of nature.
In the animal kingdom, there is seldom any sickness, because animals do not violate the laws of nature.
Before the age of machinery, man's life was more natural.
Persons of the past generations were much stronger and healthier.
Life in the twentieth century is becoming more and more artificial.
Hence there is much deterioration in health and strength.
In spite of the innumerable doctors and the latest medical discoveries our health is still deteriorating."