Don’t stop when you’re tired. Stop when you’re done.
Concerning the gods, I have no means of knowing whether they exist or not or of what sort they may be, because of the obscurity of the subject, and the brevity of human life.
解析：意在言外，得意忘言。
“孟母三迁”的故事我们都不陌生，环境对人的成长和身心修养起着重要作用。人际交往的圈子也是重要的环境，对自己身边的环境要慎重选择，不随不良环境而堕落。
I don't think you can ever be too prepared.