Carl Sagan Quotes

Somewhere, something incredible is waiting to be known.

If we ruin the earth, there is no place else to go

One of the saddest lessons of history is this: If we’ve been bamboozled long enough, we tend to reject any evidence of the bamboozle. We’re no longer interested in finding out the truth. The bamboozle has captured us. It’s simply too painful to acknowledge, even to ourselves, that we’ve been taken. Once you give a charlatan power over you, you almost never get it back.

In college, in the early 1950s, I began to learn a little about how science works, the secrets of its great success, how rigorous the standards of evidence must be if we are really to know something is true, how many false starts and dead ends have plagued human thinking, how our biases can colour our interpretation of evidence, and how often belief systems widely held and supported by the political, religious and academic hierarchies turn out to be not just slightly in error, but grotesquely wrong.

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

The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what’s true.

Nothing disturbs me more than the glorification of stupidity.

If we continue to accumulate only power and not wisdom, we will surely destroy ourselves.

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.

I have a foreboding of an America in my children’s or grandchildren’s time – […] when awesome technological powers are in the hands of a very few, and no one representing the public interest can even grasp the issues; when the people have lost the ability to set their own agendas or knowledgeably question those in authority; when, clutching our crystals and nervously consulting our horoscopes, our critical faculties in decline, unable to distinguish between what feels good and what’s true, we slide, almost without noticing, back into superstition and darkness.

You can’t convince a believer of anything; for their belief is not based on evidence, it’s based on a deep seated need to believe

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

If we can’t think for ourselves, if we’re unwilling to question authority, then we’re just putty in the hands of those in power.

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

If we can’t think for ourselves, if we’re unwilling to question authority, then we’re just putty in the hands of those in power. But if the citizens are educated and form their own opinions, then those in power work for us. In every country, we should be teaching our children the scientific method and the reasons for a Bill of Rights. With it comes a certain decency, humility and community spirit. In the demon-haunted world that we inhabit by virtue of being human, this may be all that stands between us and the enveloping darkness.

Don’t judge everyone else by your own limited experience.

The absence of evidence is not the evidence of absence.

The idea that God is an oversized white male with a flowing beard, who sits in the sky and tallies the fall of every sparrow is ludicrous. But if by ‘God,’ one means the set of physical laws that govern the universe, then clearly there is such a God. This God is emotionally unsatisfying… it does not make much sense to pray to the law of gravity.

Be grateful everyday for the brief but magnificent opportunity that life provides.

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

Our ancestors worshipped the Sun, and they were not that foolish. It makes sense to revere the Sun and the stars, for we are their children.

Finding the occasional straw of truth awash in a great ocean of confusion and bamboozle requires intelligence, vigilance, dedication, and courage. But if we don’t practice these tough habits of thought, we cannot hope to solve the truly serious problems that face us — and we risk becoming a nation of suckers, up for grabs by the next charlatan who comes along.

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

Science is not only compatible with spirituality; it is a profound source of spirituality.

The illegality of cannabis is outrageous, an impediment to full utilization of a drug which helps produce the serenity and insight, sensitivity and fellowship so desperately needed in this increasingly mad and dangerous world.