Be sceptical, ask questions, demand proof. Demand evidence. Don't take anything for granted. But here's the thing: When you get proof, you need to accept the proof. And we're not that good at doing that.

Benjamin Franklin refused to have one of his children vaccinated against smallpox. The four-year-old boy died, and Franklin wrote later of how mistaken he was to expose him to the needless risk.

I understand the horrors of having no insurance, but, believe me, eight hours of sleep and good meals are NOT going to prevent you from getting sick. Don't gamble with your life; it's a stupid bet.

It is not possible to assert publicly that Monsanto is anything other than venal without being accused of being a sellout, a fraud, or worse.

All the food we eat - every grain of rice and kernel of corn - has been genetically modified. None of it was here before mankind learned to cultivate crops. The question isnt whether our food has been modified, but how.

I have never earned one penny from any pharmaceutical company. I will never accept one penny from them either. Ever.

Daily vitamins are of no value.