Of all my inventions, I liked the phonograph best

Everything comes to him who hustles while he waits.

I was at the foot of my class.

The three great essentials to achieve anything worth while are: Hard work, Stick-to-itiveness, and Common sense.

When you become quiet, it just dawns on you

The Bible of nature is the best damn Bible in the world. Its laws are perfect and grand, and all the prayers in the world can't change them. There is intelligence and law in this world, and there may be supreme intelligence and law, but so far as the religion of the day is concerned, it is all a damned fake.

Be courageous! Have faith! Go forward.