The man who is fit to work at any particular trade is unable to understand the science of that trade without the help and guidance of those who are working with him or over him.
适合从事任何特定行业的人，如果没有与他一起工作或在他之上的人的帮助和指导，就无法理解该行业的科学。
The key to a happy life is not in avoiding problems, but in learning how to deal with them effectively.
The system produces needs faster than it can satisfy them, and thus it perpetuates itself.
The truth is often found in the margins.
"Silence is never empty; it's full of potential."