"The Gods in bounty work up storms about us, that give mankind occasion to exert their hidden strength, and throw our into practice virtues that shun the day, and lie concealed in the smooth seasons and the calms of life."

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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.

— Calvin Coolidge