Main menu  Home  Categories  Authors  Aphorism of the day  Site map Advertisement Land of Wisdom - quotations and sayings of famous people listed by category iWinkels.be snel gemakkelijk de juiste winkel of winkels vinden Aphorisms by authors » Werner Heisenberg Aphorisms: 1 - 1 of 1 Pages: 1  An expert is someone who knows some of the worst mistakes that can be made in his subject and how to avoid them. Wisdom and Ignorance Aphorisms: 1 - 1 of 1 Pages: 1  All quotations are property and copyright of their authors © 2005-2008, Aphorisms-Galore.Info