When I was about eighteen, I saw myself as a rather sensitive, delicate, poetic, romantic figure. And then I got into the Civilian Conservation Corps and into the army, and I started smoking and drinking and being tough and getting muscles, and I had a whole different image of myself.
The only guy that was ever affected by climactic conditions in his acting was Kirk Douglas. He did a superb job in 'Lonely Are the Brave' because we were shooting that picture up at about 12,000 feet, and the rarefied atmosphere sapped him of any energy or strength that he had. That was his best performance.