All inquires carry with them some element of risk. There is no guarantee that the universe will conform to our predispositions.
Carl SaganScience is not perfect. It's often misused; it's only a tool, but it's the best tool we have. Self-correcting , ever changing, applicable to everything: with this tool, we vanquish the impossible.
Carl SaganThe dumbing down of America is evident in the slow decay of substantive content, a kind of celebration of ignorance.
Carl SaganWidespread intellectual and moral docility may be convenient for leaders in the short term, but it is suicidal for nations in the long term. One of the criteria for national leadership should therefore be a talent for understanding, encouraging, and making constructive use of vigorous criticism.
Carl Sagan