Be courteous to see your mistakes, courageous to accept them, and clever enough to correct them.

Politeness is the first thing people lose once they get the power.

No stone can split water, but water can sink any stone.

Let your knowledge be your adviser and not your arrogance.

In general, poor is polite and rich is rude.

Principles in a poor is admirable as politeness in a prince.

Killing a cruelty is not a cruelty.

You are a worthy competitor, the best rival I ever encountered, it is an honour to be your opponent, you are better than me at many things, but you cannot beat me at politeness.

Adversity sure does gives you trouble, but it keeps you humble.