Hence the same instant which killed the animals froze the country where they lived. This event was sudden, instantaneous, without any gradual development.

It is evident that one cannot say anything demonstrable about the problem before having resolved these preliminary questions, and yet we hardly possess the necessary information to solve some of them.

But the revolutions and changes which are responsible for the present state of the earth are not limited to the upsetting of the ancient strata and to the ebbing of the sea after the formations of new layers.

Georges Cuvier Quotes