A brief history of healing.
2001 B.C. – Here, eat this root.
1000 A.D. – That root is heathen! Here, say this prayer.
1850 A.D. – That prayer is superstitious. Here, drink this potion.
1940 A.D. – That potion is snake-oil. Here, swallow this pill.
1985 A.D. – That pill is ineffective. Here, take this antibiotic.
2001 A.D. – That antibiotic doesn’t work. Here, eat this root.