Many of the most successful men I have known have never grown up. They have retained bubbling-over boyishness. They have relished wit, they have indulged in humor. They have not allowed “dignity” to depress them into moroseness. Youthfulness of spirit is the twin brother of optimism, and optimism is the stuff of which American business success is fashioned. Resist growing up!
B.C Forbes

In business, honesty is absolutely essential. The best principle is “under promise and over deliver”.

Richard Denny