See. It's just a theory!

I am quite conscious that my speculations run beyond the bounds of true science. It is a mere rag of an hypothesis with as many flaws and holes as sound parts.

The Theory of Evolution.

a theory in crisis.

False facts are highly injurious to the progress of science, for they often endure long; but false views, if supported by some evidence, do little harm, for everyone takes a salutary pleasure in proving their falseness; and when this is done, one path towards error is closed and the road to truth is often at the same time opened.

Why then is not every geological formation and every stratum full of such intermediate links? Geology assuredly does not reveal any such fine graduated organic chain; and this, perhaps, is the most obvious and serious objection which can be urged against the theory.