Never attempt to catch a whale with a minnow.

There is no class of people in the world, who have such good memories as creditors.

Science is the pursuit of pure truth, and the systematizing of it.

In the United States, where we have more land than people, it is not at all difficult for persons in good health to make money.

Money is in some respects like fire; it is a very excellent servant but a terrible master.

I am prouder of my title 'The Children's Friend' than if I were to be called 'The King of the World'.

Unless a man enters upon the vocation intended for him by nature, and best suited to his peculiar genius, he cannot succeed.