The first general fact which he has remarked is, that by far the great — James Hutton

"The third general fact on which this theory is founded, is, that the stratified rocks, instead of being either horizontal, or nearly so, as they no doubt were originally, are now found possessing all degrees of elevation, and some of them even perpendicular to the horizon; to which we must add, that those strata which were once at the bottom of the sea are now raised up, many of them several thousand feet above its surface. ...This force, which has burst in pieces the solid pavement on which the ocean rests, and has raised up rocks from the bottom of the sea, into mountains... exceeds any which we see actually exerted, but seems to come nearer to the cause of the volcano or the earthquake than to any other, of which the effects are directly observed. The immense disturbance, therefore, of the strata, is in this theory ascribed to heat acting with an expansive power, and elevating those rocks which it had before consolidated."

"Huttons claim to rank high among the founders of geology rests on no wide series of writings, like those which Von Buch poured forth so copiously for more than two generations. Nor was it proclaimed by a host of devoted pupils, like those who spread abroad the fame of Werner. It is based, so far at least as geology is concerned, on one single work, and on the elucidations of two friends and disciples."

"Hutton published a landmark treatise, Theory of the Earth, in which he set forth the principle of uniformitarianism: the present is the key to the past. He proposed the same processes of erosion, weathering, uplift and sedimentation that are sculpting the land today have been at work throughout the eons. ...In Huttons day, uniformitarianism was a refutation of theories that called upon catastrophic events like the biblical flood to explain the way the world looked. But even as these deux ex machina theories fell to the wayside, Huttons ideas continued to hold sway..."

"The object of Dr Hutton was not, like that of most other theorists, to explain the first origin of things. He was too well skilled in the rules of sound philosophy for such an attempt; and he accordingly confined his speculations to those changes which terrestrial bodies have undergone since the establishment of the present order, in as far as distinct marks of such changes are now to be discovered."

"Few men have entered with better preparation on the arduous task of investigating the true theory of the earth."

"The past history of our globe must be explained by what can be seen to be happening now. No powers are to be employed that are not natural to the globe, no action to be admitted except those of which we know the principle."