“All are lunatics, but he who can analyze his delusion is called a philosopher.”

“His act was rather that of a harmless lunatic than an enemy. We were not so new to the country as not to know that the solitary life of many a plainsman had a tendency to develop eccentricities of conduct and character not always easily distinguishable from mental aberration. A man is like a tree: in a forest of his fellows he will grow as straight as his generic and individual nature permits; alone, in the open, he yields to the deforming stresses and tortions that environ him.”

“Heathen, n. A benighted creature who has the folly to worship something he can see and feel.”

“Cogito cogito ergo cogito sum -- "I think that I think, therefore I think that I am;" as close an approach to certainty as any philosopher has yet made.”

“Philanthropist. A rich (and usually bald) old gentleman who has trained himself to grin while his conscience is picking his pocket...”

“A Man having found a Lion in his path undertook to subdue him by the power of the human eye; and near by was a Rattlesnake engaged in fascinating a small bird. "How are you getting on, brother?" the Man called out to the other reptile, without removing his eyes from those of the Lion.”

“The hardest tumble a man can take is to fall over his own bluff.”