Fluid intelligence peaks in youth. Crystallized intelligence grows with age. The key is knowing when to shift. That’s how our lives get better with time. | Arthur Brooks

Our intelligence follows two natural curves. Fluid intelligence, like quick problem-solving and innovation, peaks around 39, then begins to decline. But crystallized intelligence rises after: wisdom, teaching, mentoring, and guiding others. Success means knowing when to shift from innovator to instructor, and embracing the strengths of each curve. From my conversation with @kencoleman on the Front Row Seat podcast. | Arthur Brooks