Carl Sagan Quotes

Somos el producto de 4.500 millones de años de lenta y fortuita evolución biológica. No hay razón para pensar que el proceso evolutivo se haya detenido. El hombre es una animal transicional, no es el climax de la creación.

El cosmos es todo lo que es, todo lo que fue y todo lo que será. Nuestras más ligeras contemplaciones del cosmos nos hacen estremecer: Sentimos como un cosquilleo nos llena los nervios, una voz muda, una ligera sensación como de un recuerdo lejano o como si cayéramos desde gran altura. Sabemos que nos aproximamos al más grande de los misterios.

La ausencia de prueba no es prueba de ausencia.

Somos polvo de estrellas que piensa acerca de ellas.

En algún sitio algo increíble espera ser descubierto.

Si estamos solos en el Universo, seguro sería una terrible pérdida de espacio.

La primer gran virtud del hombre fue la duda, y el primer gran defecto fue la fe.

La vida es sólo un vistazo momentáneo de las maravillas de este asombroso Universo y es triste que tantos la esten malgastando soñando con fantasías espirituales.

No puedes convencer a un creyente de nada porque sus creencias no están basadas en evidencias, están basadas en una enraizada necesidad de creer-

We make our world significant by the courage of our questions and by the depth of our answers.

The absence of evidence is not the evidence of absence.

The world is so exquisite with so much love and moral depth, that there is no reason to deceive ourselves with pretty stories for which there's little good evidence. Far better it seems to me, in our vulnerability, is to look death in the eye and to be grateful every day for the brief but magnificent opportunity that life provides.

Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.

But I try not to think with my gut. If I'm serious about understanding the world, thinking with anything besides my brain, as tempting as that might be, is likely to get me into trouble.

Books, purchasable at low cost, permit us to interrogate the past with high accuracy; to tap the wisdom of our species; to understand the point of view of others, and not just those in power; to contemplate--with the best teachers--the insights, painfully extracted from Nature, of the greatest minds that ever were, drawn from the entire planet and from all of our history. They allow people long dead to talk inside our heads.

The aggregate of our joy and suffering, thousands of confident religions, ideologies, economic doctrines, every hunter, forager, every hero, coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother, father, hopeful child, inventor, explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there on a mote of dust suspended in a sunbeam.

Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives.

We are a way for the cosmos to know itself.

It pays to keep an open mind, but not so open your brains fall out.

Every one of us is precious in the cosmic perspective. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.