I believe that our Heavenly Father invented man because he was disappointed in the monkey. – Mark Twain

We could use up two Eternities in learning all that is to be learned about our own world and the thousands of nations that have arisen and flourished and vanished from it. Mathematics alone would occupy me eight million years. – Mark Twain
My books are like water those of the great geniuses are wine. (Fortunately) everybody drinks water. – Mark Twain
There is no law of progress. Our future is in our own hands, to make or to mar. It will be an uphill fight to the end, and would we have it otherwise? Let no one suppose that evolution will ever exempt us from struggles. You forget, said the Devil, with a chuckle, that I have been evolving too. – W. R. [William Ralph] Inge
We live between two worlds; we soar in the atmosphere; we creep upon the soil; we have the aspirations of creators and the propensities of quadrupeds. There can be but one explanation of this fact. We are passing from the animal into a higher form, and the drama of this planet is in its second act. – W. Winwood Reade