Once you have sold a customer, make sure he is satisfied with your goods. Stay with him until the goods are used up or worn out. Your product may be of such long life that you will never sell him again, but he will sell you and your product to his friends.

The happiest people are those who are too busy to notice whether they are or not.

A man must not deny his manifest abilities, for that is to evade his obligations.

Something that has always puzzled me all my life is why, when I am in special need of help, the good deed is usually done by somebody on whom I have no claim.

It's not the increasing competition; it's going back to real work that most of us complain about.

Once you have sold a customer, make sure he is satisfied with your goods. Stay with him until the goods are used up or worn out. Your product may be of such long life that you will never sell him again, but he will sell you and your product to his friends.

Most of us regard good luck as our right, and bad luck as a betrayal of that right.