Call the roll in your memory of conspicuously successful [business] giants and, if you know anything about their careers, you will be struck by the fact that almost every one of them encountered inordinate difficulties sufficient to crush all but the gamest of spirits. Edison went hungry many times before he became famous.

Cheerfulness is among the most laudable virtues. It gains you the good will and friendship of others. It blesses those who practice it and those upon whom it is bestowed.

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!

Many of the most successful men I have known have never grown up. Youthfulness of spirit is the twin brother of optimism... Resist growing up!

The victors of the battles of tomorrow will be those who can best harness thought to action. From office boy to statesman, the prizes will be for those who most effectively exert their brains, who take deep, earnest and studious counsel of their minds, who stamp themselves as thinkers.

Golf is an ideal diversion, but a ruinous disease.

Genius is often a short way of spelling hard work. Poverty, obscurity, struggle and ambition formed the foundation for many careers of transcendent achievement. Few marks are made in the world's history by eight-hour-day men.... Sir Joshua Reynolds had but one maxim for success: Work, work, work. Is not rigid and continuous training necessary for the making of strong athletes? Hard work is not fatal to real success. Vouloir c'est pouvoir.