The greatest journeys all start with a single step.

A wise man knows; learn from others, never get complacent and know where the classic old dangers come from.

I think viewers quite like it when I'm suffering or eating or drinking something horrible or really up against it in some quicksand or whatever.

All my life the only thing I've been good at has been climbing and throwing myself off big things.

I miss him still today: his long, whiskery eyebrows, his huge hands and hugs, his warmth, his prayers, his stories, but above all his shining example of how to live and how to die.

Dreams, though, are cheap, and the real task comes when you start putting in place the steps needed to make those dreams a reality.

I've fallen down crevasses, been bitten by snakes, been knocked unconscious, had various limbs broken and once, a heavy camera came plunging down which very nearly decapitated me.