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.

To be able to find joy in another's joy: that is the secret of happiness.

婴儿不是需要修理的物品，而是需要理解的人。

You don’t have to be the best, you just have to try your best.

"I believe in the power of books to change lives."