Carl Sagan

“Somewhere, something incredible is waiting to be known.”

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

“Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people.”

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