Mark Twain's Letters — Volume 6 (1907-1910)

DEAR MR. MOORE, The book has furnished me several days of deep pleasure and satisfaction; it has compelled my gratitude at the same time, since it saves me the labor of stating my own long-cherished opinions and reflections and resentments by doing it lucidly and fervently and irascibly for me.

There is one thing that always puzzles me: as inheritors of the mentality of our reptile ancestors we have improved the inheritance by a thousand grades; but in the matter of the morals which they left us we have gone backward as many grades. That evolution is strange, and to me unaccountable and unnatural. Necessarily we started equipped with their perfect and blemishless morals; now we are wholly destitute; we have no real, morals, but only artificial ones—morals created and preserved by the forced suppression of natural and hellish instincts. Yet we are dull enough to be vain of them. Certainly we are a sufficiently comical invention, we humans.