Successful salesmen, authors, executives and workmen of every sort need patience. The great liability of youth is not inexperience but impatience.

Temporary success can be achieved in spite of lack of other fundamental qualities, but no advancements can be maintained without hard work.

Few of us get anything without working for it.

The hardest job of all is trying to look busy when you're not.

Achievement is by all accounts to a great extent a matter of clinging after others have given up.

Change, not habit, is what gets most of us down; habit is the stabilizer of human society, change accounts for its progress.

Nothing happens to you that has not happened to someone else.