Carl Sagan

Extraordinary claims require extraordinary evidence.

Extraordinary claims require extraordinary evidence.

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

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

For small creatures such as we the vastness is bearable only through love.

For small creatures such as we the vastness is bearable only through love.

All of the books in the world contain no more information than is broadcast as video in a single large read more

All of the books in the world contain no more information than is broadcast as video in a single large American city in a single year. Not all bits have equal value.

We've arranged a civilization in which most crucial elements profoundly depend on science and technology.

We've arranged a civilization in which most crucial elements profoundly depend on science and technology.