Charlie in Flowers for Algernon - he epitomises in his loss of innocence, and return to his original level of intelligence, the harm we may do when we identify the life lived by another as lacking in value and seek to change it.
"Study hard what interests you the most in the most undisciplined, irreverent and original manner possible." — Richard P. Feynman
"Never tell a person a thing is impossible. G*d/the Universe may have been waiting all this time for someone ignorant enough of the impossibility to do just that thing." author unknown