Our ancestors lived out of doors. They were as familiar with the night sky as most of us are with our favorite television programs.

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.

Eyes which feast on the beauty of the world will always look beautiful to others. That which receives beauty exudes it as well.

Have you started already? Keep it up! Are you getting tired? Don't give up! Did you quit? You can do it again! Great accomplishments do not come with big steps

The negative principle that no law is free law, is not much known except among lawyers.

If for no other reason than it's just fun to watch people age, and it's fun to watch what happened to '80s hairdos and outfits, and what they look like now.

It might have been that notion, or just chance, or its more flamboyant relative, destiny.

In this sullen apathy neither true wisdom nor true happiness can be found.

You can't fake competence, creativity, or sexual arousal.

So, then, there abide these three, Aristotle, Longinus, and Coleridge.

Away with funeral music-set The pipe to powerful lips- The cup of life's for him that drinks And not for him that sips.

I am not a driver, I am a racer.