He knows nothing and thinks he knows everything. That points clearly to a political career.

Nothing can be unconditional; consequently nothing can be free.

One man that has a mind and knows it can always beat ten men who haven't and don't.

He knows nothing; he thinks he knows everything - that clearly points to a political career

There is nothing more dangerous than the conscience of a bigot.

The man with a toothache thinks everyone happy whose teeth are sound. The poverty-stricken man makes the same mistake about the rich man.