Duty is for Kant the One and All. Out of the duty of gratitude, he claims, one has to defend and esteem the ancients; and only out of duty has he become a great man. ↗
By a great man, however, we mean a man who, because of his spiritual gifts, his character, and other qualities, deserves to be called great and who as a result earns the power to influence others. ↗
Mention Hubert Sumlin, as well, because Hubert's a great man, and again, you know, I don't play the guitar very good, but when I'm playing this kind of music, I always have him in my mind. I wish I could play like Hubert. ↗