We Behold The Face Of Nature Bright

Consequently, If My Theory Be True, It Is Indisputable That Before The Lowest Silurian Stratum Was Deposited, Long Periods Elapsed, As Long As, Or Probably Far Longer Than, The Whole Interval From The Silurian Age To The Present Day; And That During These Vast, Yet Quite Unknown, Periods Of Time, The World Swarmed With Living Creatures. To The Question Why We Do Not Find Records Of These Vast Primordial Periods, I Can Give No Satisfactory Answer.

Each Organic Being Is Striving To Increase In A Geometrical Ratio . . . Each At Some Period Of Its Life, During Some Season Of The Year, During Each Generation Or At Intervals, Has To Struggle For Life And To Suffer Great Destruction . . . The Vigorous, The Healthy, And The Happy Survive And Multiply.

I Have Long Discovered That Geologists Never Read Each Other's Works, And That The Only Object In Writing A Book Is A Proof Of Earnestness.

Why, If Species Have Descended From Other Species By Insensibly Fine Gradations, Do We Not Everywhere See Innumerable Transitional Forms.

Daily It Is Forced Home On The Mind Of The Biologist That Nothing, Not Even The Wind That Blows, Is So Unstable As The Level Of The Crust Of This Earth.