“One must be a wise reader to quote wisely and well”

“Cheerfulness keeps up a kind of daylight in the mind, filling it with a steady and perpetual serenity”

“Thought means life, since those who do not think so do not live in any high or real sense. Thinking makes the man”

“Who knows, the mind has the key to all things besides”

“Not to unlearn what you have learned is the most necessary kind of learning.”

“The man who never alters his opinions is like standing water, and breeds reptiles of the mind”