幸福晚年的秘诀在于要有好的记性和坏的记性。
The secret of a happy old age is to have a good memory and a bad one.
If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.
I write to make sense of my own existence.
言论自由是自由的重要堡垒;它们共同繁荣和共同消亡。