Wisdom I know is social. She seeks her fellows. But Beauty is jealous, and illy bears the presence of a rival.

Nothing can stop the man with the right mental attitude from achieving his goal; nothing on earth can help the man with the wrong mental attitude.

He who knows best knows how little he knows

Honesty is the first chapter of the book wisdom.

He who receives ideas from me, receives instruction himself without lessening mine; as he who lights his taper at mine receives light without darkening me

It is as useless to argue with those who have renounced the use of reason as to administer medication to the dead