Here are some quotes that I took from https://www.goodreads.com/work/quotes/3237312-cosmos
, all by Carl Sagan. As some of you may already know, he had a lot of interesting quotes, but I've picked quotes that I think are the most relevant. Here they are:
"The total number of stars in the universe is larger than all the grains of sand on all the beaches of the planet Earth."
"We are a way for the cosmos to know itself."
"Science is not only compatible with spirituality; it is a profound source of spirituality."
"The universe is a pretty big place. If it's just us, seems like an awful waste of space."
"When we look up at night and view the stars, everything we see is shining because of distant nuclear fusion."
"Every star may be a sun to someone."
"The surface of the Earth is the shore of the cosmic ocean."
"A single lifetime, even though entirely devoted to the sky, would not be enough for the investigation of so vast a subject."
"Science is an ongoing process. It never ends. There is no single ultimate truth to be achieved, after which all the scientists can retire. And because this is so, the world is far more interesting,"
"But if we do not destroy ourselves, I believe that we will one day venture to the stars."