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Today is Carl Sagan’s 79th birthday and that’s as good an excuse as any to remember this remarkable man.  Here’s a small piece of his wisdom from his 1987 CSICOP keynote address:

In science it often happens that scientists say, “You know that’s a really good argument; my position is mistaken,” and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn’t happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.

In honor of one of Sagan’s most famous quotes we made this Apple Pie.  Feel free to share it!  For more information visit the official website.