My father must have hummed a tune as I stood on his shoes and he waltzed me, but what I remember are the giant steps I was suddenly making.

NPR: Excerpt: 'The Importance of Music to Girls'

But I still remember traveling up to Yellowstone, and coming over a hill, and suddenly just hundreds of deer and seeing bison for the first time, and seeing Old Faithful.

WHITEHOUSE: President Obama Speaks at Conference on Conservation