Copper is cheaper than silver and, next to silver, is the best conductor of electricity. Although the supply of copper in the world is very large, our uses are so great that we should not waste copper. Some thieves who broke into a house found only a rooster. The rooster begged them not to take him because he was useful in waking up the owners of the house to get them to work. The thieves told him that he interrupted their work by waking the owners, and they took the bird.
Life consists of a sequence of difficult tasks satisfactorily accomplished.
Interspersed periods of relaxation invest us with the will to begin and the energy to complete our duties. In numerous subtle ways, the newspaper uses its layout to impose its editorial policy upon its readers. The filterable viruses get their name from the fact that they pass through the pores of even the finest of porcelain filters. Several of the filterable viruses have been subjected to crystallization and have survived, a treatment that no microorganisms have ever withstood. When returned to the proper conditions after crystallization, the viruses resume their normal activity and multiply.