Whenever Nature's bounty is in danger of exhaustion, the chemist has sought for a substitute. The conquest of disease has made great progress as a result of your efforts. Wherever we look, the work of the chemist has raised the level of our civilization and has increased the productive capacity of the nation. Waste materials, formerly cast aside, are now being utilized.

No enterprise can exist for itself alone. It ministers to some great need, it performs some great service, not for itself, but for others; or failing therein, it ceases to be profitable and ceases to exist.

It is a great advantage to a President, and a major source of safety to the country, for him to know he is not a great man.

When a man begins to feel that he is the only one who can lead in this republic, he is guilty of treason to the spirit of our institutions.

Work is not a curse; it is the prerogative of intelligence, the only means to manhood, and the measure of civilization.

America has many glories. The last one that she would wish to surrender is the glory of the men who have served her in war. While such devotion lives, the nation is secure. Whatever dangers may threaten from within or without, she can view them calmly. Turning to her veterans, she can say: 'These are our defenders. They are invincible. In them is our safety.'

The fundamental precept of liberty is toleration.