if I'd had some set idea of a finish line, don't you think I would have crossed it years ago?

Well, I don't think there's any need for people to focus on my career.

The trouble with energy farming is that the energy isn't always where you want to use it, and it isn't always when you want to use it.

Today, we're very dependent on cheap energy. We just take it for granted - all the things you have in the house, the way industry works.

You know capitalism is this wonderful thing that motivates people, it causes wonderful inventions to be done. But in this area of diseases of the world at large, it's really let us down.

We always overestimate the change that will occur in the next two years and underestimate the change that will occur in the next ten. Don't let yourself be lulled into inaction.

Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important.

Our success has really been based on partnerships from the beginning.

 “Patience is a key element of success.”

If the path be beautiful, let us not ask where it leads.

Though we travel the world over to find the beautiful, we must carry it with us or we find it not.

This is a wonderful day, I have never seen this one before. 

You are imperfect, permanently and inevitably flawed. And you are beautiful.

Life is not fair, get used to it.

“To win big, you sometimes have to take big risks.”

If all my bridge coach ever told me was that I was 'satisfactory,' I would have no hope of ever getting better. How would I know who was the best? How would I know what I was doing differently?

No one is useless in this world who lightens the burdens of another.

No great thing is created suddenly.

I’m a slow walker, but I never walk back.

The journey of a thousand miles begins with one step.

The will to persevere is often the difference between failure and success.

What keeps me going is goals.

The world breaks everyone, and afterwards many are strong at the broken places.

Rock bottom became the solid foundation on which I rebuilt my life.