The companies that succeed are those that turn non-consumers into consumers.
相關(guān)性和因果關(guān)系之間的區(qū)別在實證工作中是根本性的。
If you do not tell the truth about yourself you cannot tell it about other people.
信心不是樂觀或悲觀,也不是性格屬性。它是對積極結(jié)果的期待。