" in my first American

class—a freshman chemistry class during the 1969-70 academic year—

they looked at me as though I was supposed to be their nurse because

they were paying a stiff tuition. That's another concept I had to learn—

in American private schools we worked for them because they paid the

tuition, but in Egypt we were educating them. "

― Ahmed H. Zewail , رحلة عبر الزمن