From George Will:

Judging by Jon, the world would be improved by more people with Down syndrome, who are quite nice, as humans go. It is said we are all born brave, trusting and greedy, and remain greedy. People with Down syndrome must remain brave in order to navigate society’s complexities. They have no choice but to be trusting because, with limited understanding, and limited abilities to communicate misunderstanding, they, like Blanche DuBois in “A Streetcar Named Desire,” always depend on the kindness of strangers. Judging by Jon’s experience, they almost always receive it.