友谊是人生最珍贵的财富。
Friendship is the most precious wealth of life.
Your best response to an insult is “You’re probably right.” Often they are.
I'm not afraid of aging. I think it's a privilege to grow old.
在追求真理的过程中，没有捷径，只有不懈的知识追求。
资本主义是贪婪的合法化版本。
The coal industry must evolve to meet modern environmental standards, or it will become obsolete.