Quote by Lewis Terman
"Persistence in the face of difficulty is a greater predictor of success than initial talent."
More from Lewis Terman
"Intelligence is not a single general ability, but a collection of more or less independent abilities."
"The gifted individual is one who sees relationships among things."
"Genius is not born; it is made."
"The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time and still retain the ability to function."