“...there is no real advance in human reason, for what we gain in one direction we lose in another; for all minds start from the same point, and as the time spent in learning what others have thought is so much time lost in learning to think for ourselves, we have more acquired knowledge and less vigor of mind. Our minds like our arms are accustomed to use tools for everything, and to do nothing for themselves.”

“As a kitten does what all other kittens do, so a child wants to do what other children do, with a wanting that is as powerful as it is mindless. Since we human beings have to learn what we do, we have to start out that way, but human mindfulness begins where that wish to be the same leaves off.”

“There are all kinds of ignorance in the world. Education, learning to read and write, doesn't necessarily give us knowledge. We have to learn to use our minds to see what is really happening.”

“Our knowledge of circumstances has increased, but our uncertainty, instead of having diminished, has only increased. The reason of this is, that we do not gain all our experience at once, but by degrees; so our determinations continue to be assailed incessantly by fresh experience; and the mind, if we may use the expression, must always be under arms.”

“We can learn from history, but we can also deceive ourselves when we selectively take evidence from the past to justify what we have already made up our minds to do.”

“All that we are is the result of what we have thought. The mind is everything. What we think, we become.”