Quotes from Carl Sagan

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

Extraordinary claims require extraordinary evidence.

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

The price we pay for anticipation of the future is anxiety about it

The visions we offer our children shape the future.

Our concern for the future can be tested by how well we support our libraries.