Every one lives by selling something.
Every man is his own doctor of divinity in the last ressort.
Every man has a sane spot somewhere.
Every heart that has beat strong and cheerfully has left a hopeful impulse behind it in the world, and bettered the tradition of mankind.
Each has his own tree of ancestors, but at the top of all sits Probably Arboreal.
Dead men don’t bite.[repeated often in the rest of the book]
Courage, the footstool of the Virtues, upon which they stand?
But that is the object of long living, that man should cease to care about life.
Bright is the ring of words when the right man rings them.
Books are good enough in their own way, but they are a mighty bloodless substitute for life.
And if a man reads very hard, as the old anecdote reminds us, he will have little time for thought.
An intelligent person, looking out of his eyes and hearkening in his ears, with a smile on his face all the time, will get more true education than many another in a life of heroic vigils.