Billions Quote by Neil deGrasse Tyson

Why should we consider defining intelligence as something global and as something that hasn't actually yet appeared on Earth? It may be useful for…

— David Grinspoon

In fact, one of the arguments for searching for intelligent life in space, elsewhere, is that we have no evidence that intelligence has any…

— Arthur C. Clarke

Intelligence is called the world's second oldest profession for a reason. Everyone does it.

— Fareed Zakaria

Since the rise of Homo sapiens, human beings have been the smartest minds around. But very shortly - on a historical scale, that is…

— Eliezer Yudkowsky

People talk about human intelligence as the greatest adaptation in the history of the planet. It is an amazing and marvelous thing, but in…

— Stephen Jay Gould

Clearly, unless thinking beings inevitably wipe themselves out soon after developing technology, extraterrestrial intelligence could often be millions or billions of years in advance…

— Seth Shostak

Humans have existed only for the last 0.001 percent of cosmic time. All of which says that - unless the Homo sapiens brain is…

— Seth Shostak

No sooner does man discover intelligence than he tries to involve it in his own stupidity.

— Jacques Yves Cousteau

Intelligent life on a planet comes of age when it first works out the reason for its own existence.

— Richard Dawkins

The universe is eight billion years old, the last two billion of which have produced intelligent life. During this time not one hour of…

— Jack Vance

“The journey of a thousands suns begins today. Some may question whether the journey is worth the sacrifice and danger. To them I say…

— David Marusek

The sum of intelligence on the planet is a constant; the population is growing.

— Anonymous