For me, the most challenging part of writing a picture book is to fit a big idea into a small format in a way that small children can relate to. (booklistonline.com)
I always assumed the most challenging part of getting to college was the application process. (educationnext.org)
SP: The most challenging part for me was trying to see things from the perspective of someone who sees vaccines as something to be feared. (discovermagazine.com)