The true measure of a civilization is how it treats its weakest members.
The only true voyage is not to go to new landscapes, but to have new eyes.
I don't have a plan. I never have. I just do what feels right at the time.
质量不是保证；它是一种证明。
数学不是沿着一条清理得很好的高速公路小心行进，而是进入一个陌生的荒野的旅程，探险者常常会迷路。