做事情，不能有伤害别人的坏念头；但要有警惕他人、防备他人的念头。这是在告诫与人交往思考不周的人。
In distributed systems, the key challenge is achieving consensus among unreliable components.
我准备好见上帝了。上帝准没准备好见我还很难说。
Philosophy is an ornament in prosperity, a refuge in adversity, and a provision in old age.