I am an old man and have known a great many troubles, but most of them never happened.

A religion that comes of thought, and study, and deliberate conviction, sticks best. The revivalized convert who is scared in the direction of heaven because he sees hell yawn suddenly behind him, not only regains confidence when his scare is over, but is ashamed of himself for being scared, and often becomes more hopelessly and malignantly wicked than he was before.

A sound heart is a surer guide than an ill-trained conscience.

Medicine has made all its progress during the past fifty years. ... How many operations that are now in use were known fifty years ago?-they were not operations, they were executions.

If your only tool is a hammer, everything starts to look like a nail.

The cayote is a living, breathing allegory of Want. He is always hungry. He is always poor, out of luck and friendless. The meanest creatures despise him, and even the fleas would desert him for a velocipede.

Man is a marvelous curiosity...he thinks he is the Creator's pet...he even believes the Creator loves him; has passion for him; sits up nights to admire him; yes and watch over him and keep him out of trouble. He prays to him and thinks he listens. Isn't it a quaint idea.