With insufficient data it is easy to go wrong.

Somewhere, something incredible is waiting to be known.

It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring.

The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.

Imagination will often carry us to worlds that never were. But without it we go nowhere.

I don't want to believe. I want to know.

The absence of evidence is not the evidence of absence.

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.

For small creatures such as we the vastness is bearable only through love.

You have to know the past to understand the present.

Have confidence. Like the first spark of morning light against the entire night sky recognize the Power and Brilliance within you.

How was a boy who'd tasted poverty ever expected to choose the poorer road?

Then he kept to the back streets, and found a place that did a very reasonable double sausage, egg, bacon and fried slice, in the hope that food could replace sleep.

Acknowledge the good around you and the simplicity it takes to recognise it

Cowardice... is almost always simply a lack of ability to suspend functioning of the imagination.

In prosperous fortunes be modest and wise, The greatest may fall, and the lowest may rise: But insolent People that fall in disgrace, Are wretched and nobody pities their Case.

Do you mind not being so kind and obedient? It makes me nervous.

Retirement accords with the tone of my mind; I will not descend to a world I despise.

I knew that life isn't always just about the Olympic gold medals and the sponsors.

The rich rob the poor and the poor rob one another.