Roosevelt was what we might call a “lifetime learner.” Learning became, for him, a mode of personal enjoyment and a path to professional success. It’s a habit many of us would like to emulate. The Economist recently argued that with all the disruptions in the modern economy, particularly technology, ongoing skill acquisition is critical to persistent professional relevance. Formal education levels are regularly linked to higher earnings and lower unemployment. And apart from its utility, learning is fun. But this type of continuous and persistent learning isn’t merely a decision. It must become a habit. And as such, it requires careful cultivation.