"You can’t become a moral authority if you rarely challenge students in class and engage them beyond it. If we professors do not do that, the course is not an induction of eager minds into an enlarging vision. It is a requirement to fulfill. Only our assistance with assignments matters. When it comes to students, we shall have only one authority: the grades we give. We become not a fearsome mind or a moral light, a role model or inspiration. We become accreditors."
"Global is the new local: Pollution changes clouds, climate downstream"