Here’s the first Oppenheimer anecdote from American Prometheus that really grabbed my attention.

In the spring of 1932, Robert wrote his brother a long letter explaining why [discipline and work had always been his guiding principles]. The fact that discipline, he argued, “is good for the soul is more fundamental than any of the grounds given for its goodness. I believe that through discipline, though not through discipline alone, we can achieve serenity, and a certain small but precious measure of freedom from the accidents of incarnation … and that detachment which preserves the world which it renounces. I believe that through discipline we learn to preserve what is essential to our happiness in more and more adverse circumstances, and to abandon with simplicity what would else have seemed to use indispensable.” And only through discipline is it possible “to see the world without the gross distortion of personal desire, and in seeing it so, accept more easily our earthly privation and its earthly horror”. [p100]

This captures the elegance of discipline as well as anything I’ve read. Not the triumphant, hard-charging, ironman variant of discipline that gets common airplay these days but the pliable constrained firmness that brings liberation from ennui. The arc of Oppenheimer’s life was largely defined by this pursuit of discipline and intellectual rigor in physics, aesthetics, and most famously politics.