我最害怕的莫过于共和国分裂成两个大党，每个党都在其领导人的领导下，相互对立地制定措施。

Life is pleasant. Death is peaceful. It's the transition that's troublesome.

I think the only way to conquer fear is to tell it to go to hell.

I don't believe in guilt, I believe in living on impulse as long as you never intentionally hurt another person.

Give me a dozen healthy infants, well-formed, and my own specified world to bring them up in and I'll guarantee to take any one at random and train him to become any type of specialist I might select—doctor, lawyer, artist, merchant-chief and, yes, even beggar-man and thief, regardless of his talents, penchants, tendencies, abilities, vocations, and race of his ancestors.