William Ernest Henley wrote the poem "Invictus" after having his leg amputated when he was in his twenties. The poem is about remaining unconquered and not giving up in the face of adversity. It describes withstanding the "fell clutch of circumstance" and the "bludgeonings of chance" with one's head bloody but unbowed. Ultimately, the poem asserts that a person is in control of their own fate and spirit as the "master of my fate" and "captain of my soul." Nelson Mandela drew inspiration from this poem during his imprisonment under apartheid.