I'm not a parenting expert. In fact, I'm not sure that I even believe in the idea of 'parenting experts.' I'm an engaged, imperfect parent and a passionate researcher. I'm an experienced mapmaker and a stumbling traveler. Like many of you, parenting is by far my boldest and most daring adventure.

The march of invention has clothed mankind with powers of which a century ago the boldest imagination could not have dreamt.

Well may the boldest fear and the wisest tremble when incurring responsibilities on which may depend our country's peace and prosperity, and in some degree the hopes and happiness of the whole human family.

The march of invention has clothed mankind with powers of which a century ago the boldest imagination could not have dreamt.

Well may the boldest fear and the wisest tremble when incurring responsibilities on which may depend our country's peace and prosperity and in some degree the hopes and happiness of the whole human family.