Long before the rise of the ubiquitous infographic, you had the flowchart. Designed to document complex processes, they’ve been helping us visualize what’s going on since 1921. Now we’ve stumbled across one by Gustavo Vieira, which unlocks the secret to a happy life. But it’s not visualizing a complex process at all. In fact, quite the opposite. It’s breathtakingly simple. Read and marvel at its wisdom.