We've been trained since kindergarten: Be nice, be kind, share, put on a smile. So we're conditioned to squash our natural selfish instincts, and that's the right thing for society.

When onstage, I always try to take my audience through as many emotions as I possibly can. I want them to go from laughter to tears, be shocked and surprised and walk out the door with a renewed sense of themselves - and maybe a smile.

First, I want to pay tribute to Diana myself. She was an exceptional and gifted human being. In good times and bad, she never lost her capacity to smile and laugh, nor to inspire others with her warmth and kindness. I admired and respected her - for her energy and commitment to others, and especially for her devotion to her two boys.

In politics you learn to always smile.

When trying to remember my share in the glow of the eternal present, in the smile of God, I return to my childhood, too, for that is where the most significant discoveries turn up.