From JK Rowlings' 2008 Harvard speech, this line:
“There is an expiry date on blaming your parents for steering you in the wrong direction; the moment you are old enough to take the wheel, responsibility lies with you.”
Love this speech by Bill Gurley - one of the common things across top professionals like Bob Dylan, Danny Meyer, etc was that they studied everything they could find about their field, they were masterful students first.