I think I was born strong-willed. That's not the kind of thing you can learn. The advantage is, you stick to what you believe in and rarely get pushed out of what you want to do.
“Inspiration in Science may have to do with ideas, but not in Art. In art it is in the senses that are instinctively responsive to the medium of expression.”
“More and more, when I single out the person out who inspired me most, I go back to my grandfather.”