1 – Frederick Douglass taught that literacy is the path from slavery to freedom. There are many kinds of slavery and many kinds of freedom, but reading is still the path. – Carl Sagan
2 – We are a way for the cosmos to know itself. – Carl Sagan
3 – The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five. – Carl Sagan
4 – I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution comes from the outside, the less likely we are to solve our problems ourselves. – Carl Sagan
5 – The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself. – Carl Sagan
6 – I don’t want to believe. I want to know. – Carl Sagan
7 – It is of interest to note that while some dolphins are reported to have learned English – up to fifty words used in correct context – no human being has been reported to have learned dolphinese. – Carl Sagan
8 – We make our world significant by the courage of our questions and the depth of our answers – Carl Sagan
9 – The universe seems neither benign nor hostile, merely indifferent. – Carl Sagan
10 – The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together. – Carl Sagan
11 – Science is a way of thinking much more than it is a body of knowledge. – Carl Sagan
12 – She had studied the universe all her life, but had overlooked its clearest message: For small creatures such as we the vastness is bearable only through love. – Carl Sagan
13 – The absence of evidence is not the evidence of absence. – Carl Sagan
14 – The cure for a fallacious argument is a better argument, not the suppression of ideas. – Carl Sagan
15 – Exploration is in our nature. We began as wanderers, and we are wanderers still. We have lingered long enough on the shores of the cosmic ocean. We are ready at last to set sail for the stars. – Carl Sagan
16 – Extinction is the rule. Survival is the exception. – Carl Sagan
17 – But I could be wrong. – Carl Sagan
18 – Somewhere, something incredible is waiting to be known. – Carl Sagan
19 – 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. – Carl Sagan
20 – The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff. – Carl Sagan
21 – Science is not only compatible with spirituality; it is a profound source of spirituality. – Carl Sagan
22 – One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time. – Carl Sagan
23 – If you wish to make an apple pie from scratch, you must first invent the universe. – Carl Sagan
24 – For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring. – Carl Sagan
25 – Extraordinary claims require extraordinary evidence. – Carl Sagan
26 – Imagination will often carry us to worlds that never were, but without it, we go nowhere. – Carl Sagan
27 – For small creatures such as we the vastness is bearable only through love. – Carl Sagan
28 – It pays to keep an open mind, but not so open your brains fall out. – Carl Sagan
29 – We are like butterflies who flutter for a day and think it is forever. – Carl Sagan
30 – We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good. – Carl Sagan
31 – The universe is a pretty big place. If it’s just us, seems like an awful waste of space. – Carl Sagan