The question 'Who am I?' is not an idle one. How you answer the question will determine how you live the rest of your life. It will determine the quality of your life.

The day you really want to end all hunger, there will be no more hunger.

The sad part about our past is that religions, ironically enough, are responsible for creating the most destructive idea that has ever been visited upon the human race: the idea that there is such a thing as 'better.'

Mastery is not measured by the number of terrible things you eliminate from your life, but by the number of times you eliminate calling them terrible.

In science there is something known as a stem cell. A stem cell is an undifferentiated cell which has not yet decided whether it's gonna be a cell of your brain or a cell of your heart or of your finger nail. But science is learning how to coax, how to manipulate, the raw material of life that we call stem cell to become any cell of the body. I think that God is the stem cell of the universe.

...so many great truths must be very gently introduced, with voices soft and the truths themselves understated.

Everything changes when you make a decision to be one of the courageous ones, someone who chooses to make a life, rather than a living.