Nothing weights lighter than a promise. >>
Who has never tasted what is bitter does not know what is sweet. >>
An old error is always more popular than a new truth. >>
Who dares to teach must never cease to learn. >>
He who dares to teach must never cease to learn. >>
In the education of children there is nothing like alluring the intere >>
He who undertakes to be his own teacher has a fool for a pupil.