Children are the best Humanitarians.

When you ask children what they want to be when they grow up, they usually choose a career that supports the well being of the human race; a policeman, a firefighter, a doctor, a teacher, an environmentalist, a veterinarian, a forest ranger.  They've only been here for a short time yet they seem to understand, sometimes better than adults,  that people need to support one another and have care for the earth.
Of course some people will argue that they make these choices because they are the people that children most often encounter in their daily lives. I like to believe that children just get it!

Henry wants to be a Needle Doctor, not the kind that only takes blood, but one that will discover "new medicines to make diseases go away!"