Better Than Before: What I Learned About Making and Breaking Habits--to Sleep More, Quit Sugar, Procrastinate Less, and Generally Build a Happier Life

by Gretchen Rubin

From my observation, just about everyone falls into one of four distinct groups: Upholders respond readily to both outer expectations and inner expectations. Questioners question all expectations, and will meet an expectation only if they believe it’s justified. Obligers respond readily to outer expectations but struggle to meet inner expectations (my friend on the track team). Rebels resist all expectations, outer and inner alike.