All that we know is nothing can be known.
Every action has its pleasures and its price.
Thou shouldst eat to live; not live to eat.
To harm another is to harm oneself
I will not yield to any man contrary to what is right, for fear of death, even if I should die at once for not yielding.
A man should inure himself to voluntary labor, and not give up to indulgence and pleasure, as they beget no good constitution of body nor knowledge of mind.