He who undertakes to be his own teacher has a fool for a pupil. >>
Speaking comes by nature, silence by understanding. >>
Who digs a pit for others will fall in themselves. >>
Half the promises people say were never kept, were never made. >>
But I have promises to keep, and miles to go before I sleep, and miles >>
The best way to keep one's word is not to give it. >>
Nothing weights lighter than a promise.