In the space of one hundred and seventy-six years the Mississippi has shortened itself two hundred and forty-two miles. Therefore, in the Old Silurian Period the Mississippi River was upward of one million three hundred thousand miles long, seven hundred and forty-two years from now the Mississippi will be only a mile and three-quarters long. There is something fascinating about science. One gets such wholesome returns of conjecture out of such a trifling investment of fact.

When an honest writer discovers an imposition it is his simple duty to strip it bare and hurl it down from its place of honor, no matter who suffers by it; any other course would render him unworthy of the public confidence.

God puts something good and loveable in every man His hands create.

One must keep one's character. Earn a character first if you can, and if you can't, then assume one. From the code of morals I have been following and revising and revising for 72 years I remember one detail. All my life I have been honest - comparatively honest. I could never use money I had not made honestly - I could only lend it.

Ignorance is not, not knowing something. It is knowing what isn't so.

Architects cannot teach nature anything.

I have too much respect for the truth to drag it out on every trifling occasion.