"The joy of discovery is certainly the liveliest that the mind of man can ever feel."
Cheerfulness is the best promoter of health and is as friendly to the mind as to the body.
如果人类不能在我有生之年登陆火星,我将会非常失望。
最大的风险是不冒任何风险。
让我告诉你引导我达到目标的秘密。我的力量仅在于我的坚韧。
There is no such thing as a small moment; every moment contains eternity.