I maintain there is much more wonder in science than in pseudoscience. And in addition, to whatever measure this term has any meaning, science has the additional virtue, and it is not an inconsiderable one, of being true. -Carl Sagan
If you want to make an apple pie from scratch, you must first create the universe. -Carl Sagan
Reason well from the beginning and then there will never be any need to look back with confusion and doubt. -The Dalai Lama
When you make the finding yourself - even if you're the last person on Earth to see the light - you'll never forget it. -Carl Sagan
The universe is not required to be in perfect harmony with human ambition. -Carl Sagan
When you are solving a problem, don't worry. Now, after you have solved the problem, then that's the time to worry. - Richard Feynman
Some people say, "How can you live without knowing?" I do not know what they mean. I always live without knowing. That is easy. How you get to know is what I want to know. -Richard Feynman
Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool. -Richard Feynman