真正的道德决定是如何在无助和无希望中生存下去。
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.
没有思想的自由，就没有真正的自由。
我们每天可支配的时间是有弹性的；我们感受到的激情会扩展它，我们激发的激情会收缩它；而习惯会填补剩下的部分。
The essence of computer science is the study of algorithms and their efficiency.
