My final defeat is that I never once dared to try.
Ultimately, what I regret is not the failure itself, but that I never even attempted the vast enterprise of the heart and mind—the words I didn't say, the courage I didn't summon, the life that could have been lived if I had only tried, which I actually could not live. All other sorrows are mere skirmishes; this is my only defeat: having chosen not to move forward.