广告不会创造产品优势。它只能传达它。
Advertising doesn't create a product advantage. It can only convey it.
We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.
The mind is not a static entity, but a dynamic process of continual adjustment.
We will now discuss in a little more detail the Struggle for Existence.  
成功的关键是专注于目标,而不是障碍。
How sharper than a serpent's tooth is to have a thankless child.