One of them is definitely Sigmund Freud, he is the central person in the psychoanalytic dream interpretation. The other is his Swiss student, Carl Jung.
Alfred Adler respected and acknowledge the work on dream but he himself rather focused on the inferiority complex.
"aim small, miss small", meaning that if you aim at a man and miss, you miss the man, while if you aim at a button (for instance) and miss, you still hit the man.