Learning is a good medicine: but no medicine is powerful enough to preserve itself from taint and corruption independently of defects in the jar that it is kept in. One man sees clearly but does not see straight: consequently he sees what is good but fails to follow it; he sees knowledge and does not use it.
Michel de MontaigneIf you want it to be so, history can be a waste of time; it can also be, if you want it to be so, a study bearing fruit beyond price.
Michel de Montaigne