Peter Drucker left in his wake many insightful and challenging lessons that have revolutionized corporations, industries, and the very foundation of modern management.

Though not every business subscribes to Drucker’s management philosophy, all managers would be well-advised to at least consider his groundbreaking vision as a means to improve their work, and by extension, their company. While merely a sample of Drucker’s sagacity, enjoy these ten inspiring quotes from the father of modern management to help optimize your business.