Technology should serve humanity, not the other way around.
The best preparation for tomorrow is doing your best today.
La realidad es solo una de las infinitas posibilidades que nuestra imaginación puede concebir.
错误同真理的关系，就象睡梦同清醒的关系一样。一个人从错误中醒来，就会以新的力量走向真理。
The less secure a man is, the more likely he is to have extreme prejudice.
——赠汝为同志题词