Intelligence, imagination, and knowledge are essential resources, but only effectiveness converts them into results. By themselves, they only set limits to what can be attained.
The Author of this Quote
![Peter F. Drucker](/_next/image?url=https%3A%2F%2Fassets.heroic.us%2Fauthors%2Fheadshots%2Fpeter-f-drucker.jpg&w=640&q=75)
Author
Peter F. Drucker
Management consultant, educator, author, and "the founder of modern management".