The Earth is a very small stage in a vast cosmic arena.Carl Sagan
Our planet is a lonely speck in the great enveloping cosmic dark.Carl Sagan
The significance of our lives and our fragile planet is then determined only by our own wisdom and courage.Carl Sagan
We are the custodians of life's meaning.Carl Sagan
We are the way for the cosmos to know itself.Carl Sagan
There is something stunningly narrow about how the Anthropic Principle is phrased. Yes, only certain laws and constants of nature are consistent with our kind of life. But essentially every law and constant in nature must be such as it to allow some kind of observer or the Universe would be silent and unnoticed.Carl Sagan
Far better it seems to me, in our vulnerability, is to look death in the eye and to be grateful every day for the brief but magnificent opportunity that life provides.Carl Sagan
Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light.Carl Sagan
Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.Carl Sagan
If we long to believe that the stars rise and set for us, that we are the reason there is a Universe, does science do us a disservice in deflating our conceits?Carl Sagan