Carl Sagan Quotes - Page 5

المزاعم الاستثنائية، تحتاج إلى أدلة استثنائية

El universo no fue hecho a medida del hombre; tampoco le es hostil: es indiferente.

The whole idea of a democratic application of skepticism is that everyone should have the essential tools to effectively and constructively evaluate claims to knowledge.

Advertising teaches people not to trust their judgment. Advertising teaches people to be stupid.

No question; language can free us of feeling, or almost. Maybe that's one of its functions - so we can understand the world without becoming entirely overwhelmed by it.

[...] afirmações extraordinárias requerem evidência extraordinária.

Might it be possible at some future time, when neurophysiology has advanced substantially, to reconstruct the memories or insight of someone long dead?...It would be the ultimate breach of privacy.

It is certainly true that all beliefs and all myths are worthy of a respectful hearing. It is not true that all folk beliefs are equally valid - if we’re talking not about an internal mindset, but about understanding of the external reality.

Black holes collect problems faster than they collect matter.

The secrets of evolution, are time and death.

There's an unbroken thread that stretches from those first cells to us.

Meanwhile the Cosmos is rich beyond measure: the total number of stars in the universe is greater than all the grains of sand on all the beaches of the planet Earth.

It was difficult to hold Broca's brain without wondering whether in some sense Broca was still in there - his wit, his skeptical mien, his abrupt gesticulations when he talked, his quiet and sentimental moments.

Those are some of the things that molecules do, given four billion years of evolution

...You think if I haven't had your religious experience I can't appreciate the magnificence of your god. But it's just the opposite. I listen to you, and I think, his god is too small! One paltry planet, a few thousand years - hardly worth the attention of a minor deity, much less the Creator of the universe.

One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.

Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.

There were many women in the Soviet scientific community, proportionately more so than in the United States. But they tended to occupy menial middle-level positions, and male Soviet scientists, like their American counterparts, were puzzled about a pretty woman with evident scientific competence who forcefully expressed her views.

The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars.

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.

The symbolism seemed so apt. The same technology that can propel apocalyptic weapons from continent to continent would enable the first human voyage to another planet. It was a choice of fitting mythic power: to embrace the planet named after, rather than the madness ascribed to, the god of war.