Never try to pacify someone at the height of his rage.

Never underestimate the power of human stupidity.

Never volunteer for anything.

Never wrestle a pig; you both get dirty, and he likes it.

Nice guys finish last but it is lonely at the top.

No experiment is ever a complete failure; it can always be used as a bad example.

No good deed goes unpunished.

No man is lonely while eating spaghetti.

No man’s credit is as good as his money.