A Brief History of Medicine
"I have an earache...."
2000 B.C. - Here, eat this root.
1000 A.D. - That root is heathen, say this prayer.
1850 A.D. - That prayer is superstition, drink this potion.
1940 A.D. - That potion is snake oil, swallow this pill.
1985 A.D. - That pill is ineffective, take this antibiotic.
2000 A.D. - That antibiotic is artificial! Here, eat this root.
......makes you think, doesn't it?