"The only way to discover the limits of the possible is to go beyond them into the impossible."
我还没有把我所见所闻的一半告诉你们。
The only truly secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards - and even then I have my doubts.
Happiness is beneficial for the body, but it is grief that develops the powers of the mind.