Some 5 billion years from now, there will be a last perfect day on ...

Some 5 billion years from now, there will be a last perfect day on Earth... then the sun will begin to die, life will be extinguished, the oceans will boil and evaporate away.

If we are to survive, our loyalties must be broadened further, to ...

If we are to survive, our loyalties must be broadened further, to include the whole human community, the entire planet Earth.

Our loyalties are to the species and the planet. We speak for Earth.

Our loyalties are to the species and the planet. We speak for Earth.

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

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

Question everything.

We are all star stuff.

Billions and billions.

Never deceive a friend.

We are made of starstuff.

War is murder writ large.

All colours are arbitrary.

Real patriots ask questions.

The universe is a put-up job.

Not all bits have equal value.

Who will observe the observers?

The supernatural does not exist.

Who will speak for Planet Earth?

Valid criticism does you a favor.

We are all made up of star stuff.

The open road still softly calls.

Time is the supreme Law of nature.

Understanding is a kind of ecstasy

To read is to voyage through time.

Every star may be a sun to someone.

Observation always involves theory.

Observations always involve theory.

Is there intelligent life on Earth?

What an astonishing thing a book is.

The undevout astronomer must be mad.

We are one species. We are starstuff.

I've got no religious beliefs at all.

We are star stuff harvesting sunlight.

We can't help it. Life looks for life.

Science is a way to not fool ourselves.

Nearer the gods no mortal may approach.

The universe is unfolding as it should.

Science is prediction, not explanation.

Man is too quick at forming conclusions.

Gravity wins over all other known forces.

An organism at war with itself is doomed.

The illegality of cannabis is outrageous.

Cloud bounded along the earth like a ball

Religion is not the most important thing.

Cleverly designed experiments are the key.

We especially need imagination in science.

We are a way for the cosmos to know itself.

Coaches build teams, parents build players.

He who lives among dogs must learn to pant.

Worldwide, half of all brains are in women.

He broke through the barriers of the skies.

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