Imagination is everything. It is the preview of life's coming attractions.

We cannot get to where we dream of being tomorrow unless we change our thinking today.

You ask me if I keep a notebook to record my great ideas. I've only ever had one.

If you took half of something and continued to take half of that half and so on, you would never reach an end.

If we knew what it was we were doing, it would not be called research, would it?

How many people are trapped in their everyday habits: part numb, part frightened, part indifferent? To have a better life we must keep choosing how we are living.

I would teach peace rather than war, love rather than hate.