Peter Ritchie Calder Born: July 01, 1906 Occupation: Author Zodiac Sign: Cancer Chinese Sign: Horse Science at best is not wisdom; it is knowledge. Wisdom is knowledge tempered with judgment.- Peter Ritchie CalderCollection: EducationCopy Quote That is how the atom is split. But what does it mean ? To us who think in terms of practical use it means - Nothing !- Peter Ritchie CalderCollection: MeanCopy Quote