You know for sure whether leadership ideas and practices work by how long they last. The new ideas we come up with today will take time to prove themselves—that’s the tricky part.
One of the great leaders of the past—whose teachings and ideas have held strong for more than 150 years—is Abraham Lincoln, the 16th president of the United States. He was an uncharacteristic leader for his time, perhaps even more so for our time, and yet his principles and teachings on leadership have withstood the test of time.
Lead on Purpose 