My first reaction was that the adult world was fake and liars and basically worked for money and power. I didn't want to live in that world, so I spent a year, aged 17 to 18, trying to kill myself. I didn't want to live in a world of violence and injustice.

The value of friendship and just deep human contact grows out of giving.

The purpose of a doctor or any human in general should not be to simply delay the death of the patient, but to increase the person's quality of life.

All the messages our kids are getting is money-taking, not giving.

At the age of 18, I made up my mind to never have another bad day in my life. I dove into a endless sea of gratitude from which I've never emerged.

Laughter boosts the immune system and helps the body fight off disease, cancer cells as well as viral, bacterial and other infections. Being happy is the best cure of all diseases!

Nothing I study makes me think we will survive this century. And yet why am I so happy? Because it's not too late. Just get off your ass and work for revolution.