The crust of our earth is a great cemetery, where the rocks are tombstones on which the buried dead have written their own epitaphs. - Louis Agassiz

Every great scientific truth goes through three stages. First, people say it conflicts with the Bible. Next they say it has been discovered before. Lastly they say they always believed it.

The facts will eventually test all our theories, and they form, after all, the only impartial jury to which we can appeal.

The eye of the trilobite tells us that the sun shone on the old beach where he lived; for there is nothing in nature without a purpose, and when so complicated an organ was made to receive light, there must have been light to enter it.