The first principle is that you must not fool yourself - and you are the easiest person to fool.

        — Richard Feynman, Caltech commencement address, 1974


HOMEOPATHY: turning water into money since 1810

        — Dr Aust


...those who have never entered upon scientific pursuits know not a tithe of the poetry by which they are surrounded.

        — Herbert Spencer


An expert is a man who has made all the mistakes that can be made in a very narrow field.

        — Niels Bohr


Once you get a B.S., you think you know everything. Once you get an M.S., you realize you know nothing. Once you get a Ph.D., you realize no one knows anything!

        — unknown


The fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers. But they also laughed at Bozo the Clown.

        — Carl Sagan.


Progress in science comes when experiments contradict theory.

        — Richard Feynman


It's so easy to become mesmerized by the immediacy of a result that you don't question its validity.

        — Naomi Karten


You can know the name of a bird in all the languages of the world, but when you're finished, you'll know absolutely nothing whatever about the bird... So let's look at the bird and see what it's doing -- that's what counts. I learned very early the difference between knowing the name of something and knowing something.

        — Richard Feynman


The truth does not change according to our ability to stomach it.

        — Flannery O'Connor


When one is postulating correlations or causations extant in reality, one should always remember that the human brain is mainly a pattern recognition engine. And it is such a persistent pattern recognition engine that it often perceives patterns where none exist.

        — Jeff Walther