生活中唯一的限制是你自己设定的。

The real moral test of a society is how it treats those who are at the dawn of life, the children; those who are in the twilight of life, the aged; and those who are in the shadow of life, the sick, the needy and the handicapped.

我出生于非洲。我之所以来加州，是因为在这里，新技术可以得到推广应用，而且，这里没有具有威胁性的竞争对手。